diff options
Diffstat (limited to 'gnuradio-core/src')
| -rw-r--r-- | gnuradio-core/src/gen_interpolator_taps/Makefile.am | 18 | ||||
| -rw-r--r-- | gnuradio-core/src/lib/Makefile.am | 9 | ||||
| -rw-r--r-- | gnuradio-core/src/lib/general/Makefile.am | 3 | ||||
| -rw-r--r-- | gnuradio-core/src/lib/general/general.i | 2 | ||||
| -rw-r--r-- | gnuradio-core/src/lib/general/gr_dd_mpsk_sync_cc.cc | 196 | ||||
| -rw-r--r-- | gnuradio-core/src/lib/general/gr_dd_mpsk_sync_cc.h | 93 | ||||
| -rw-r--r-- | gnuradio-core/src/lib/general/gr_dd_mpsk_sync_cc.i | 34 | ||||
| -rw-r--r-- | gnuradio-core/src/lib/io/gr_udp_sink.cc | 314 | ||||
| -rw-r--r-- | gnuradio-core/src/lib/io/gr_udp_sink.h | 98 | ||||
| -rw-r--r-- | gnuradio-core/src/lib/io/gr_udp_sink.i | 22 | ||||
| -rw-r--r-- | gnuradio-core/src/lib/io/gr_udp_source.cc | 273 | ||||
| -rw-r--r-- | gnuradio-core/src/lib/io/gr_udp_source.h | 90 | ||||
| -rw-r--r-- | gnuradio-core/src/lib/io/gr_udp_source.i | 15 | ||||
| -rw-r--r-- | gnuradio-core/src/python/gnuradio/gr/Makefile.am | 3 | ||||
| -rwxr-xr-x | gnuradio-core/src/python/gnuradio/gr/qa_udp_sink_source.py | 99 |
15 files changed, 622 insertions, 647 deletions
diff --git a/gnuradio-core/src/gen_interpolator_taps/Makefile.am b/gnuradio-core/src/gen_interpolator_taps/Makefile.am index 5f3a6cb25..d244e7f54 100644 --- a/gnuradio-core/src/gen_interpolator_taps/Makefile.am +++ b/gnuradio-core/src/gen_interpolator_taps/Makefile.am @@ -21,13 +21,13 @@ include $(top_srcdir)/Makefile.common -EXTRA_DIST = praxis.txt simpson.h +EXTRA_DIST = praxis.txt simpson.h objective_fct.c gen_interpolator_taps.c simpson.c praxis.f -if ENABLE_FORTRAN -noinst_PROGRAMS = gen_interpolator_taps -noinst_HEADERS = simpson.h - -gen_interpolator_taps_SOURCES = gen_interpolator_taps.c objective_fct.c simpson.c praxis.f -gen_interpolator_taps_LDADD = $(FLIBS) -lm - -endif +# if ENABLE_FORTRAN +# noinst_PROGRAMS = gen_interpolator_taps +# noinst_HEADERS = simpson.h +# +# gen_interpolator_taps_SOURCES = gen_interpolator_taps.c objective_fct.c simpson.c praxis.f +# gen_interpolator_taps_LDADD = $(FLIBS) -lm +# +# endif diff --git a/gnuradio-core/src/lib/Makefile.am b/gnuradio-core/src/lib/Makefile.am index 477ba6725..f3a3accdb 100644 --- a/gnuradio-core/src/lib/Makefile.am +++ b/gnuradio-core/src/lib/Makefile.am @@ -1,5 +1,5 @@ # -# Copyright 2001,2004,2009 Free Software Foundation, Inc. +# Copyright 2001,2004,2009,2010 Free Software Foundation, Inc. # # This file is part of GNU Radio # @@ -33,10 +33,11 @@ AM_CPPFLAGS = $(STD_DEFINES_AND_INCLUDES) $(CPPUNIT_INCLUDES) $(WITH_INCLUDES) # generate libgnuradio-core.la from the convenience libraries in subdirs -lib_LTLIBRARIES = libgnuradio-core.la libgnuradio-core-qa.la +lib_LTLIBRARIES = libgnuradio-core.la +noinst_LTLIBRARIES = libgnuradio-core-qa.la libgnuradio_core_la_SOURCES = bug_work_around_6.cc -libgnuradio_core_la_LDFLAGS = $(NO_UNDEFINED) -version-info 0:0:0 +libgnuradio_core_la_LDFLAGS = $(NO_UNDEFINED) $(LTVERSIONFLAGS) libgnuradio_core_qa_la_SOURCES = bug_work_around_6.cc libgnuradio_core_qa_la_LDFLAGS = $(NO_UNDEFINED) -version-info 0:0:0 \ @@ -68,4 +69,4 @@ libgnuradio_core_qa_la_LIBADD = \ bin_PROGRAMS = gnuradio-config-info gnuradio_config_info_SOURCES = gnuradio-config-info.cc -gnuradio_config_info_LDADD = libgnuradio-core.la $(BOOST_PROGRAM_OPTIONS_LIB)
\ No newline at end of file +gnuradio_config_info_LDADD = libgnuradio-core.la $(BOOST_LDFLAGS) $(BOOST_PROGRAM_OPTIONS_LIB) diff --git a/gnuradio-core/src/lib/general/Makefile.am b/gnuradio-core/src/lib/general/Makefile.am index b5f5c346b..3d8a42805 100644 --- a/gnuradio-core/src/lib/general/Makefile.am +++ b/gnuradio-core/src/lib/general/Makefile.am @@ -60,7 +60,6 @@ libgeneral_la_SOURCES = \ gr_cpfsk_bc.cc \ gr_crc32.cc \ gr_ctcss_squelch_ff.cc \ - gr_dd_mpsk_sync_cc.cc \ gr_decode_ccsds_27_fb.cc \ gr_deinterleave.cc \ gr_delay.cc \ @@ -215,7 +214,6 @@ grinclude_HEADERS = \ gr_cpfsk_bc.h \ gr_crc32.h \ gr_ctcss_squelch_ff.h \ - gr_dd_mpsk_sync_cc.h \ gr_decode_ccsds_27_fb.h \ gr_diff_decoder_bb.h \ gr_diff_encoder_bb.h \ @@ -386,7 +384,6 @@ swiginclude_HEADERS = \ gr_cpfsk_bc.i \ gr_crc32.i \ gr_ctcss_squelch_ff.i \ - gr_dd_mpsk_sync_cc.i \ gr_decode_ccsds_27_fb.i \ gr_diff_decoder_bb.i \ gr_diff_encoder_bb.i \ diff --git a/gnuradio-core/src/lib/general/general.i b/gnuradio-core/src/lib/general/general.i index 6929f1e6e..68cafce2e 100644 --- a/gnuradio-core/src/lib/general/general.i +++ b/gnuradio-core/src/lib/general/general.i @@ -80,7 +80,6 @@ #include <gr_threshold_ff.h> #include <gr_clock_recovery_mm_ff.h> #include <gr_clock_recovery_mm_cc.h> -#include <gr_dd_mpsk_sync_cc.h> #include <gr_packet_sink.h> #include <gr_lms_dfe_cc.h> #include <gr_lms_dfe_ff.h> @@ -202,7 +201,6 @@ %include "gr_threshold_ff.i" %include "gr_clock_recovery_mm_ff.i" %include "gr_clock_recovery_mm_cc.i" -%include "gr_dd_mpsk_sync_cc.i" %include "gr_packet_sink.i" %include "gr_lms_dfe_cc.i" %include "gr_lms_dfe_ff.i" diff --git a/gnuradio-core/src/lib/general/gr_dd_mpsk_sync_cc.cc b/gnuradio-core/src/lib/general/gr_dd_mpsk_sync_cc.cc deleted file mode 100644 index d4141efc7..000000000 --- a/gnuradio-core/src/lib/general/gr_dd_mpsk_sync_cc.cc +++ /dev/null @@ -1,196 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2004 Free Software Foundation, Inc. - * - * This file is part of GNU Radio - * - * GNU Radio is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 3, or (at your option) - * any later version. - * - * GNU Radio is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU Radio; see the file COPYING. If not, write to - * the Free Software Foundation, Inc., 51 Franklin Street, - * Boston, MA 02110-1301, USA. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <gr_dd_mpsk_sync_cc.h> -#include <gr_io_signature.h> -#include <gr_sincos.h> -#include <gri_mmse_fir_interpolator_cc.h> -#include <math.h> -#include <stdexcept> -#include <cstdio> - -#include <gr_complex.h> - -#define M_TWOPI (2*M_PI) - -gr_dd_mpsk_sync_cc_sptr -gr_make_dd_mpsk_sync_cc (float alpha, float beta, float max_freq, float min_freq, float ref_phase, - float omega, float gain_omega, float mu, float gain_mu) -{ - return gr_dd_mpsk_sync_cc_sptr (new gr_dd_mpsk_sync_cc (alpha, beta, max_freq, min_freq,ref_phase, - omega,gain_omega,mu,gain_mu)); -} - -gr_dd_mpsk_sync_cc::gr_dd_mpsk_sync_cc (float alpha, float beta, float max_freq, float min_freq, - float ref_phase, - float omega, float gain_omega, float mu, float gain_mu) - : gr_block ("dd_mpsk_sync_cc", - gr_make_io_signature (1, 1, sizeof (gr_complex)), - gr_make_io_signature (1, 1, sizeof (gr_complex))), - d_alpha(alpha), d_beta(beta), - d_max_freq(max_freq), d_min_freq(min_freq), - d_ref_phase(ref_phase),d_omega(omega), d_gain_omega(gain_omega), - d_mu(mu), d_gain_mu(gain_mu), - d_phase(0), d_freq((max_freq+min_freq)/2), d_last_sample(0), - d_interp(new gri_mmse_fir_interpolator_cc()), - d_dl_idx(0) -{ - if (omega <= 0.0) - throw std::out_of_range ("clock rate must be > 0"); - if (gain_mu < 0 || gain_omega < 0) - throw std::out_of_range ("Gains must be non-negative"); - - assert(d_interp->ntaps() <= DLLEN); - - // zero double length delay line. - for (unsigned int i = 0; i < 2 * DLLEN; i++) - d_dl[i] = gr_complex(0.0,0.0); -} - -gr_dd_mpsk_sync_cc::~gr_dd_mpsk_sync_cc() -{ - delete d_interp; -} - -float -gr_dd_mpsk_sync_cc::phase_detector(gr_complex sample,float ref_phase) -{ - return ((sample.real()>0 ? 1.0 : -1.0) * sample.imag() - - (sample.imag()>0 ? 1.0 : -1.0) * sample.real()); -} - -void -gr_dd_mpsk_sync_cc::forecast(int noutput_items, gr_vector_int &ninput_items_required) -{ - unsigned ninputs = ninput_items_required.size(); - for (unsigned i=0; i < ninputs; i++) - ninput_items_required[i] = - (int) ceil((noutput_items * d_omega) + d_interp->ntaps()); -} -gr_complex -gr_dd_mpsk_sync_cc::slicer_45deg (gr_complex sample) -{ - float real,imag; - if(sample.real() > 0) - real=1; - else - real=-1; - if(sample.imag() > 0) - imag = 1; - else - imag = -1; - return gr_complex(real,imag); -} - -gr_complex -gr_dd_mpsk_sync_cc::slicer_0deg (gr_complex sample) -{ - gr_complex out; - if( fabs(sample.real()) > fabs(sample.imag()) ) { - if(sample.real() > 0) - return gr_complex(1.0,0.0); - else - return gr_complex(-1.0,0.0); - } - else { - if(sample.imag() > 0) - return gr_complex(0.0, 1.0); - else - return gr_complex(0.0, -1.0); - } -} - -int -gr_dd_mpsk_sync_cc::general_work (int noutput_items, - gr_vector_int &ninput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items) -{ - const gr_complex *in = (gr_complex *) input_items[0]; - gr_complex *out = (gr_complex *) output_items[0]; - - int ii, oo; - ii = 0; oo = 0; - - float error; - float t_imag, t_real; - gr_complex nco_out; - float mm_val; - - while (oo < noutput_items) { - // - // generate an output sample by interpolating between the carrier - // tracked samples in the delay line. d_mu, the fractional - // interpolation amount (in [0.0, 1.0]) is controlled by the - // symbol timing loop below. - // - out[oo] = d_interp->interpolate (&d_dl[d_dl_idx], d_mu); - - error = phase_detector(out[oo], d_ref_phase); - - d_freq = d_freq + d_beta * error; - d_phase = d_phase + d_alpha * error; - while(d_phase>M_TWOPI) - d_phase -= M_TWOPI; - while(d_phase<-M_TWOPI) - d_phase += M_TWOPI; - - if (d_freq > d_max_freq) - d_freq = d_max_freq; - else if (d_freq < d_min_freq) - d_freq = d_min_freq; - - mm_val = real(d_last_sample * slicer_0deg(out[oo]) - out[oo] * slicer_0deg(d_last_sample)); - d_last_sample = out[oo]; - - d_omega = d_omega + d_gain_omega * mm_val; - d_mu = d_mu + d_omega + d_gain_mu * mm_val; - - while(d_mu >= 1.0) { - // - // Generate more carrier tracked samples for the delay line - // - d_mu -= 1.0; - gr_sincosf(d_phase, &t_imag, &t_real); - nco_out = gr_complex(t_real, -t_imag); - gr_complex new_sample = in[ii] * nco_out; - - d_dl[d_dl_idx] = new_sample; // overwrite oldest sample - d_dl[(d_dl_idx + DLLEN)] = new_sample; // and second copy - d_dl_idx = (d_dl_idx+1) % DLLEN; // point to the new oldest sample - d_phase = d_phase + d_freq; - ii++; - } - oo++; - printf("%f\t%f\t%f\t%f\t%f\n",d_mu,d_omega,mm_val,d_freq,d_phase); - //printf("%f\t%f\t%f\t%f\t%f\t%f\t%f\n",mple).real(),slicer_0deg(d_last_sample).imag(),mm_val,d_omega,d_mu); - } - - assert(ii <= ninput_items[0]); - - consume_each (ii); - return noutput_items; -} diff --git a/gnuradio-core/src/lib/general/gr_dd_mpsk_sync_cc.h b/gnuradio-core/src/lib/general/gr_dd_mpsk_sync_cc.h deleted file mode 100644 index 4ffcd3771..000000000 --- a/gnuradio-core/src/lib/general/gr_dd_mpsk_sync_cc.h +++ /dev/null @@ -1,93 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2004,2006 Free Software Foundation, Inc. - * - * This file is part of GNU Radio - * - * GNU Radio is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 3, or (at your option) - * any later version. - * - * GNU Radio is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU Radio; see the file COPYING. If not, write to - * the Free Software Foundation, Inc., 51 Franklin Street, - * Boston, MA 02110-1301, USA. - */ - -#ifndef INCLUDED_GR_DD_MPSK_SYNC_CC_H -#define INCLUDED_GR_DD_MPSK_SYNC_CC_H - -#include <gr_sync_block.h> - -class gri_mmse_fir_interpolator_cc; - -class gr_dd_mpsk_sync_cc; -typedef boost::shared_ptr<gr_dd_mpsk_sync_cc> gr_dd_mpsk_sync_cc_sptr; - -gr_dd_mpsk_sync_cc_sptr -gr_make_dd_mpsk_sync_cc (float alpha, float beta, - float max_freq, float min_freq, float ref_phase, - float omega, float gain_omega, float mu, float gain_mu); - -/*! - * \brief Decision directed M-PSK synchronous demod - * \ingroup sync_blk - * This block performs joint carrier tracking and symbol timing recovery. - * - * input: complex baseband; output: properly timed complex samples ready for slicing. - * - * N.B, at this point, it handles only QPSK. - */ - -class gr_dd_mpsk_sync_cc : public gr_block -{ - friend gr_dd_mpsk_sync_cc_sptr gr_make_dd_mpsk_sync_cc (float alpha, float beta, - float max_freq, float min_freq, float ref_phase, - float omega, float gain_omega, float mu, float gain_mu); -public: - ~gr_dd_mpsk_sync_cc (); - void forecast(int noutput_items, gr_vector_int &ninput_items_required); - float mu() const { return d_mu;} - float omega() const { return d_omega;} - float gain_mu() const { return d_gain_mu;} - float gain_omega() const { return d_gain_omega;} - - void set_gain_mu (float gain_mu) { d_gain_mu = gain_mu; } - void set_gain_omega (float gain_omega) { d_gain_omega = gain_omega; } - void set_mu (float mu) { d_mu = mu; } - void set_omega (float omega) { d_omega = omega; } - -protected: - gr_dd_mpsk_sync_cc (float alpha, float beta, float max_freq, float min_freq, float ref_phase, - float omega, float gain_omega, float mu, float gain_mu); - - int general_work (int noutput_items, - gr_vector_int &ninput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items); - -private: - static const unsigned int DLLEN = 8; // delay line length. - - float d_alpha,d_beta,d_max_freq,d_min_freq,d_ref_phase; - float d_omega, d_gain_omega, d_mu, d_gain_mu; - float d_phase, d_freq; - gr_complex slicer_45deg (gr_complex sample); - gr_complex slicer_0deg (gr_complex sample); - gr_complex d_last_sample; - gri_mmse_fir_interpolator_cc *d_interp; - - gr_complex d_dl[2 * DLLEN]; // Holds post carrier tracking samples. - // double length delay line to avoid wraps. - unsigned int d_dl_idx; // indexes oldest sample in delay line. - - float phase_detector(gr_complex sample,float ref_phase); -}; - -#endif diff --git a/gnuradio-core/src/lib/general/gr_dd_mpsk_sync_cc.i b/gnuradio-core/src/lib/general/gr_dd_mpsk_sync_cc.i deleted file mode 100644 index 17739248e..000000000 --- a/gnuradio-core/src/lib/general/gr_dd_mpsk_sync_cc.i +++ /dev/null @@ -1,34 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2005 Free Software Foundation, Inc. - * - * This file is part of GNU Radio - * - * GNU Radio is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 3, or (at your option) - * any later version. - * - * GNU Radio is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU Radio; see the file COPYING. If not, write to - * the Free Software Foundation, Inc., 51 Franklin Street, - * Boston, MA 02110-1301, USA. - */ - -GR_SWIG_BLOCK_MAGIC(gr,dd_mpsk_sync_cc) - - gr_dd_mpsk_sync_cc_sptr gr_make_dd_mpsk_sync_cc (float alpha, float beta, - float max_freq, float min_freq, float ref_phase, - float omega, float gain_omega, float mu, float gain_mu); - -class gr_dd_mpsk_sync_cc : public gr_block -{ - private: - gr_dd_mpsk_sync_cc (float alpha, float beta, float max_freq, float min_freq, float ref_phase, - float omega, float gain_omega, float mu, float gain_mu); -}; diff --git a/gnuradio-core/src/lib/io/gr_udp_sink.cc b/gnuradio-core/src/lib/io/gr_udp_sink.cc index d37adfb8a..3084a848b 100644 --- a/gnuradio-core/src/lib/io/gr_udp_sink.cc +++ b/gnuradio-core/src/lib/io/gr_udp_sink.cc @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2007,2008,2009 Free Software Foundation, Inc. + * Copyright 2007,2008,2009,2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -26,13 +26,24 @@ #include <gr_udp_sink.h> #include <gr_io_signature.h> #include <stdexcept> -#if defined(HAVE_SOCKET) -#include <netdb.h> +#include <errno.h> #include <stdio.h> +#include <string.h> +#if defined(HAVE_NETDB_H) +#include <netdb.h> +#ifdef HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> //usually included by <netdb.h>? +#endif typedef void* optval_t; -#else +#elif defined(HAVE_WINDOWS_H) +// if not posix, assume winsock +#define USING_WINSOCK +#include <winsock2.h> +#include <ws2tcpip.h> #define SHUT_RDWR 2 -#define inet_aton(N,A) ( (A)->s_addr = inet_addr(N), ( (A)->s_addr != INADDR_NONE ) ) typedef char* optval_t; #endif @@ -40,91 +51,67 @@ typedef char* optval_t; #define SNK_VERBOSE 0 -gr_udp_sink::gr_udp_sink (size_t itemsize, - const char *src, unsigned short port_src, - const char *dst, unsigned short port_dst, - int payload_size) - : gr_sync_block ("udp_sink", - gr_make_io_signature (1, 1, itemsize), - gr_make_io_signature (0, 0, 0)), - d_itemsize (itemsize), d_updated(false), d_payload_size(payload_size) +static int is_error( int perr ) { - int ret = 0; - - // Set up the address stucture for the source address and port numbers - // Get the source IP address from the host name - struct hostent *hsrc = gethostbyname(src); - if(hsrc) { // if the source was provided as a host namex - d_ip_src = *(struct in_addr*)hsrc->h_addr_list[0]; + // Compare error to posix error code; return nonzero if match. +#if defined(USING_WINSOCK) +#define ENOPROTOOPT 109 +#define ECONNREFUSED 111 + // All codes to be checked for must be defined below + int werr = WSAGetLastError(); + switch( werr ) { + case WSAETIMEDOUT: + return( perr == EAGAIN ); + case WSAENOPROTOOPT: + return( perr == ENOPROTOOPT ); + case WSAECONNREFUSED: + return( perr == ECONNREFUSED ); + default: + fprintf(stderr,"gr_udp_source/is_error: unknown error %d\n", perr ); + throw std::runtime_error("internal error"); } - else { // assume it was specified as an IP address - if((ret=inet_aton(src, &d_ip_src)) == 0) { // format IP address - perror("Not a valid source IP address or host name"); - throw std::runtime_error("can't initialize source socket"); - } - } - - // Get the destination IP address from the host name - struct hostent *hdst = gethostbyname(dst); - if(hdst) { // if the source was provided as a host namex - d_ip_dst = *(struct in_addr*)hdst->h_addr_list[0]; - } - else { // assume it was specified as an IP address - if((ret=inet_aton(dst, &d_ip_dst)) == 0) { // format IP address - perror("Not a valid destination IP address or host name"); - throw std::runtime_error("can't initialize destination socket"); - } - } - - d_port_src = htons(port_src); // format port number - d_port_dst = htons(port_dst); // format port number - - d_sockaddr_src.sin_family = AF_INET; - d_sockaddr_src.sin_addr = d_ip_src; - d_sockaddr_src.sin_port = d_port_src; - - d_sockaddr_dst.sin_family = AF_INET; - d_sockaddr_dst.sin_addr = d_ip_dst; - d_sockaddr_dst.sin_port = d_port_dst; - - open(); -} - -// public constructor that returns a shared_ptr - -gr_udp_sink_sptr -gr_make_udp_sink (size_t itemsize, - const char *src, unsigned short port_src, - const char *dst, unsigned short port_dst, - int payload_size) -{ - return gr_udp_sink_sptr (new gr_udp_sink (itemsize, - src, port_src, - dst, port_dst, - payload_size)); + return 0; +#else + return( perr == errno ); +#endif } -gr_udp_sink::~gr_udp_sink () +static void report_error( const char *msg1, const char *msg2 ) { - close(); + // Deal with errors, both posix and winsock +#if defined(USING_WINSOCK) + int werr = WSAGetLastError(); + fprintf(stderr, "%s: winsock error %d\n", msg1, werr ); +#else + perror(msg1); +#endif + if( msg2 != NULL ) + throw std::runtime_error(msg2); + return; } -bool -gr_udp_sink::open() +gr_udp_sink::gr_udp_sink (size_t itemsize, + const char *host, unsigned short port, + int payload_size, bool eof) + : gr_sync_block ("udp_sink", + gr_make_io_signature (1, 1, itemsize), + gr_make_io_signature (0, 0, 0)), + d_itemsize (itemsize), d_payload_size(payload_size), d_eof(eof), + d_socket(-1), d_connected(false) { - gruel::scoped_lock guard(d_mutex); // hold mutex for duration of this function - - // create socket - if((d_socket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1) { - perror("socket open"); - throw std::runtime_error("can't open socket"); +#if defined(USING_WINSOCK) // for Windows (with MinGW) + // initialize winsock DLL + WSADATA wsaData; + int iResult = WSAStartup( MAKEWORD(2,2), &wsaData ); + if( iResult != NO_ERROR ) { + report_error( "gr_udp_source WSAStartup", "can't open socket" ); } +#endif - // Turn on reuse address - int opt_val = true; - if(setsockopt(d_socket, SOL_SOCKET, SO_REUSEADDR, (optval_t)&opt_val, sizeof(int)) == -1) { - perror("SO_REUSEADDR"); - throw std::runtime_error("can't set socket option SO_REUSEADDR"); + // create socket + d_socket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); + if(d_socket == -1) { + report_error("socket open","can't open socket"); } // Don't wait when shutting down @@ -132,36 +119,46 @@ gr_udp_sink::open() lngr.l_onoff = 1; lngr.l_linger = 0; if(setsockopt(d_socket, SOL_SOCKET, SO_LINGER, (optval_t)&lngr, sizeof(linger)) == -1) { - perror("SO_LINGER"); - throw std::runtime_error("can't set socket option SO_LINGER"); + if( !is_error(ENOPROTOOPT) ) { // no SO_LINGER for SOCK_DGRAM on Windows + report_error("SO_LINGER","can't set socket option SO_LINGER"); + } } - // bind socket to an address and port number to listen on - if(bind (d_socket, (sockaddr*)&d_sockaddr_src, sizeof(struct sockaddr)) == -1) { - perror("socket bind"); - throw std::runtime_error("can't bind socket"); - } + // Get the destination address + connect(host, port); +} - // Not sure if we should throw here or allow retries - if(connect(d_socket, (sockaddr*)&d_sockaddr_dst, sizeof(struct sockaddr)) == -1) { - perror("socket connect"); - throw std::runtime_error("can't connect to socket"); - } +// public constructor that returns a shared_ptr - d_updated = true; - return d_socket != 0; +gr_udp_sink_sptr +gr_make_udp_sink (size_t itemsize, + const char *host, unsigned short port, + int payload_size, bool eof) +{ + return gr_udp_sink_sptr (new gr_udp_sink (itemsize, + host, port, + payload_size, eof)); } -void -gr_udp_sink::close() +gr_udp_sink::~gr_udp_sink () { - gruel::scoped_lock guard(d_mutex); // hold mutex for duration of this function + if (d_connected) + disconnect(); - if (d_socket){ + if (d_socket != -1){ shutdown(d_socket, SHUT_RDWR); - d_socket = 0; +#if defined(USING_WINSOCK) + closesocket(d_socket); +#else + ::close(d_socket); +#endif + d_socket = -1; } - d_updated = true; + +#if defined(USING_WINSOCK) // for Windows (with MinGW) + // free winsock resources + WSACleanup(); +#endif } int @@ -174,21 +171,31 @@ gr_udp_sink::work (int noutput_items, ssize_t total_size = noutput_items*d_itemsize; #if SNK_VERBOSE - printf("Entered upd_sink\n"); + printf("Entered udp_sink\n"); #endif + gruel::scoped_lock guard(d_mutex); // protect d_socket + while(bytes_sent < total_size) { bytes_to_send = std::min((ssize_t)d_payload_size, (total_size-bytes_sent)); - r = send(d_socket, (in+bytes_sent), bytes_to_send, 0); - if(r == -1) { // error on send command - perror("udp_sink"); // there should be no error case where this function - return -1; // should not exit immediately + if(d_connected) { + r = send(d_socket, (in+bytes_sent), bytes_to_send, 0); + if(r == -1) { // error on send command + if( is_error(ECONNREFUSED) ) + r = bytes_to_send; // discard data until receiver is started + else { + report_error("udp_sink",NULL); // there should be no error case where + return -1; // this function should not exit immediately + } + } } + else + r = bytes_to_send; // discarded for lack of connection bytes_sent += r; #if SNK_VERBOSE - printf("\tbyte sent: %d bytes\n", bytes); + printf("\tbyte sent: %d bytes\n", r); #endif } @@ -198,3 +205,98 @@ gr_udp_sink::work (int noutput_items, return noutput_items; } + +void gr_udp_sink::connect( const char *host, unsigned short port ) +{ + if(d_connected) + disconnect(); + + if(host != NULL ) { + // Get the destination address + struct addrinfo *ip_dst; + struct addrinfo hints; + memset( (void*)&hints, 0, sizeof(hints) ); + hints.ai_family = AF_INET; + hints.ai_socktype = SOCK_DGRAM; + hints.ai_protocol = IPPROTO_UDP; + char port_str[12]; + sprintf( port_str, "%d", port ); + + // FIXME leaks if report_error throws below + int ret = getaddrinfo( host, port_str, &hints, &ip_dst ); + if( ret != 0 ) + report_error("gr_udp_source/getaddrinfo", + "can't initialize destination socket" ); + + // don't need d_mutex lock when !d_connected + if(::connect(d_socket, ip_dst->ai_addr, ip_dst->ai_addrlen) == -1) { + report_error("socket connect","can't connect to socket"); + } + d_connected = true; + + freeaddrinfo(ip_dst); + } + + return; +} + +void gr_udp_sink::disconnect() +{ + if(!d_connected) + return; + + #if SNK_VERBOSE + printf("gr_udp_sink disconnecting\n"); + #endif + + gruel::scoped_lock guard(d_mutex); // protect d_socket from work() + + // Send a few zero-length packets to signal receiver we are done + if(d_eof) { + int i; + for( i = 0; i < 3; i++ ) + (void) send( d_socket, NULL, 0, 0 ); // ignore errors + } + + // Sending EOF can produce ERRCONNREFUSED errors that won't show up + // until the next send or recv, which might confuse us if it happens + // on a new connection. The following does a nonblocking recv to + // clear any such errors. + timeval timeout; + timeout.tv_sec = 0; // zero time for immediate return + timeout.tv_usec = 0; + fd_set readfds; + FD_ZERO(&readfds); + FD_SET(d_socket, &readfds); + int r = select(FD_SETSIZE, &readfds, NULL, NULL, &timeout); + if(r < 0) { + #if SNK_VERBOSE + report_error("udp_sink/select",NULL); + #endif + } + else if(r > 0) { // call recv() to get error return + r = recv(d_socket, (char*)&readfds, sizeof(readfds), 0); + if(r < 0) { + #if SNK_VERBOSE + report_error("udp_sink/recv",NULL); + #endif + } + } + + // Since I can't find any way to disconnect a datagram socket in Cygwin, + // we just leave it connected but disable sending. +#if 0 + // zeroed address structure should reset connection + struct sockaddr addr; + memset( (void*)&addr, 0, sizeof(addr) ); + // addr.sa_family = AF_UNSPEC; // doesn't work on Cygwin + // addr.sa_family = AF_INET; // doesn't work on Cygwin + + if(::connect(d_socket, &addr, sizeof(addr)) == -1) + report_error("socket connect","can't connect to socket"); +#endif + + d_connected = false; + + return; +} diff --git a/gnuradio-core/src/lib/io/gr_udp_sink.h b/gnuradio-core/src/lib/io/gr_udp_sink.h index f22b92dd0..421d514a4 100644 --- a/gnuradio-core/src/lib/io/gr_udp_sink.h +++ b/gnuradio-core/src/lib/io/gr_udp_sink.h @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2007,2008,2009 Free Software Foundation, Inc. + * Copyright 2007,2008,2009,2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -24,18 +24,6 @@ #define INCLUDED_GR_UDP_SINK_H #include <gr_sync_block.h> -#include <boost/thread.hpp> -#if defined(HAVE_SOCKET) -#include <sys/socket.h> -#include <arpa/inet.h> -#elif defined(HAVE_WINDOWS_H) -#include <winsock2.h> -#include <windows.h> -#endif -#if defined(HAVE_NETINET_IN_H) -#include <netinet/in.h> -#endif - #include <gruel/thread.h> class gr_udp_sink; @@ -43,85 +31,75 @@ typedef boost::shared_ptr<gr_udp_sink> gr_udp_sink_sptr; gr_udp_sink_sptr gr_make_udp_sink (size_t itemsize, - const char *src, unsigned short port_src, - const char *dst, unsigned short port_dst, - int payload_size=1472); + const char *host, unsigned short port, + int payload_size=1472, bool eof=true); /*! * \brief Write stream to an UDP socket. * \ingroup sink_blk * * \param itemsize The size (in bytes) of the item datatype - * \param src The source address as either the host name or the 'numbers-and-dots' - * IP address - * \param port_src Destination port to bind to (0 allows socket to choose an appropriate port) - * \param dst The destination address as either the host name or the 'numbers-and-dots' - * IP address - * \param port_dst Destination port to connect to - * \param payload_size UDP payload size by default set to - * 1472 = (1500 MTU - (8 byte UDP header) - (20 byte IP header)) + * \param host The name or IP address of the receiving host; use + * NULL or None for no connection + * \param port Destination port to connect to on receiving host + * \param payload_size UDP payload size by default set to 1472 = + * (1500 MTU - (8 byte UDP header) - (20 byte IP header)) + * \param eof Send zero-length packet on disconnect */ class gr_udp_sink : public gr_sync_block { friend gr_udp_sink_sptr gr_make_udp_sink (size_t itemsize, - const char *src, unsigned short port_src, - const char *dst, unsigned short port_dst, - int payload_size); + const char *host, + unsigned short port, + int payload_size, bool eof); private: size_t d_itemsize; - bool d_updated; - gruel::mutex d_mutex; - int d_payload_size; // maximum transmission unit (packet length) - int d_socket; // handle to socket - int d_socket_rcv; // handle to socket retuned in the accept call - struct in_addr d_ip_src; // store the source ip info - struct in_addr d_ip_dst; // store the destination ip info - unsigned short d_port_src; // the port number to open for connections to this service - unsigned short d_port_dst; // port number of the remove system - struct sockaddr_in d_sockaddr_src; // store the source sockaddr data (formatted IP address and port number) - struct sockaddr_in d_sockaddr_dst; // store the destination sockaddr data (formatted IP address and port number) + int d_payload_size; // maximum transmission unit (packet length) + bool d_eof; // send zero-length packet on disconnect + int d_socket; // handle to socket + bool d_connected; // are we connected? + gruel::mutex d_mutex; // protects d_socket and d_connected protected: /*! * \brief UDP Sink Constructor * * \param itemsize The size (in bytes) of the item datatype - * \param src The source address as either the host name or the 'numbers-and-dots' - * IP address - * \param port_src Destination port to bind to (0 allows socket to choose an appropriate port) - * \param dst The destination address as either the host name or the 'numbers-and-dots' - * IP address - * \param port_dst Destination port to connect to + * \param host The name or IP address of the receiving host; use + * NULL or None for no connection + * \param port Destination port to connect to on receiving host * \param payload_size UDP payload size by default set to * 1472 = (1500 MTU - (8 byte UDP header) - (20 byte IP header)) + * \param eof Send zero-length packet on disconnect */ gr_udp_sink (size_t itemsize, - const char *src, unsigned short port_src, - const char *dst, unsigned short port_dst, - int payload_size); + const char *host, unsigned short port, + int payload_size, bool eof); public: ~gr_udp_sink (); - /*! - * \brief open a socket specified by the port and ip address info - * - * Opens a socket, binds to the address, and makes connectionless association - * over UDP. If any of these fail, the fuction retuns the error and exits. - */ - bool open(); + /*! \brief return the PAYLOAD_SIZE of the socket */ + int payload_size() { return d_payload_size; } - /*! - * \brief Close current socket. + /*! \brief Change the connection to a new destination + * + * \param host The name or IP address of the receiving host; use + * NULL or None to break the connection without closing + * \param port Destination port to connect to on receiving host * - * Shuts down read/write on the socket + * Calls disconnect() to terminate any current connection first. */ - void close(); + void connect( const char *host, unsigned short port ); - /*! \brief return the PAYLOAD_SIZE of the socket */ - int payload_size() { return d_payload_size; } + /*! \brief Send zero-length packet (if eof is requested) then stop sending + * + * Zero-byte packets can be interpreted as EOF by gr_udp_source. Note that + * disconnect occurs automatically when the sink is destroyed, but not when + * its top_block stops.*/ + void disconnect(); // should we export anything else? diff --git a/gnuradio-core/src/lib/io/gr_udp_sink.i b/gnuradio-core/src/lib/io/gr_udp_sink.i index 0f37b477b..a71006ae0 100644 --- a/gnuradio-core/src/lib/io/gr_udp_sink.i +++ b/gnuradio-core/src/lib/io/gr_udp_sink.i @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2007 Free Software Foundation, Inc. + * Copyright 2007,2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -25,22 +25,22 @@ GR_SWIG_BLOCK_MAGIC(gr,udp_sink) gr_udp_sink_sptr gr_make_udp_sink (size_t itemsize, - const char *src, unsigned short port_src, - const char *dst, unsigned short port_dst, - int payload_size=1472); + const char *host, unsigned short port, + int payload_size=1472, bool eof=true) throw (std::runtime_error); class gr_udp_sink : public gr_sync_block { protected: gr_udp_sink (size_t itemsize, - const char *src, unsigned short port_src, - const char *dst, unsigned short port_dst, - int payload_size); - - bool open(); - void close(); - int payload_size() { return d_payload_size; } + const char *host, unsigned short port, + int payload_size, bool eof) + throw (std::runtime_error); public: ~gr_udp_sink (); + + int payload_size() { return d_payload_size; } + void connect( const char *host, unsigned short port ); + void disconnect(); + }; diff --git a/gnuradio-core/src/lib/io/gr_udp_source.cc b/gnuradio-core/src/lib/io/gr_udp_source.cc index d76d0ee32..fea9a26ba 100644 --- a/gnuradio-core/src/lib/io/gr_udp_source.cc +++ b/gnuradio-core/src/lib/io/gr_udp_source.cc @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2007,2008,2009 Free Software Foundation, Inc. + * Copyright 2007,2008,2009,2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -29,80 +29,126 @@ #include <errno.h> #include <stdio.h> #include <string.h> -#if defined(HAVE_SOCKET) + +#if defined(HAVE_NETDB_H) #include <netdb.h> +#ifdef HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif typedef void* optval_t; -#else + +// ntohs() on FreeBSD may require both netinet/in.h and arpa/inet.h, in order +#if defined(HAVE_NETINET_IN_H) +#include <netinet/in.h> +#endif +#if defined(HAVE_ARPA_INET_H) +#include <arpa/inet.h> +#endif + +#elif defined(HAVE_WINDOWS_H) +// if not posix, assume winsock +#define USING_WINSOCK +#include <winsock2.h> +#include <ws2tcpip.h> #define SHUT_RDWR 2 -#define inet_aton(N,A) ( (A)->s_addr = inet_addr(N), ( (A)->s_addr != INADDR_NONE ) ) typedef char* optval_t; #endif +#define USE_SELECT 1 // non-blocking receive on all platforms +#define USE_RCV_TIMEO 0 // non-blocking receive on all but Cygwin #define SRC_VERBOSE 0 -gr_udp_source::gr_udp_source(size_t itemsize, const char *src, - unsigned short port_src, int payload_size) +static int is_error( int perr ) +{ + // Compare error to posix error code; return nonzero if match. +#if defined(USING_WINSOCK) +#define ENOPROTOOPT 109 + // All codes to be checked for must be defined below + int werr = WSAGetLastError(); + switch( werr ) { + case WSAETIMEDOUT: + return( perr == EAGAIN ); + case WSAENOPROTOOPT: + return( perr == ENOPROTOOPT ); + default: + fprintf(stderr,"gr_udp_source/is_error: unknown error %d\n", perr ); + throw std::runtime_error("internal error"); + } + return 0; +#else + return( perr == errno ); +#endif +} + +static void report_error( const char *msg1, const char *msg2 ) +{ + // Deal with errors, both posix and winsock +#if defined(USING_WINSOCK) + int werr = WSAGetLastError(); + fprintf(stderr, "%s: winsock error %d\n", msg1, werr ); +#else + perror(msg1); +#endif + if( msg2 != NULL ) + throw std::runtime_error(msg2); + return; +} + +gr_udp_source::gr_udp_source(size_t itemsize, const char *host, + unsigned short port, int payload_size, + bool eof, bool wait) : gr_sync_block ("udp_source", gr_make_io_signature(0, 0, 0), gr_make_io_signature(1, 1, itemsize)), - d_itemsize(itemsize), d_updated(false), d_payload_size(payload_size), d_residual(0), d_temp_offset(0) + d_itemsize(itemsize), d_payload_size(payload_size), + d_eof(eof), d_wait(wait), d_socket(-1), d_residual(0), d_temp_offset(0) { int ret = 0; + +#if defined(USING_WINSOCK) // for Windows (with MinGW) + // initialize winsock DLL + WSADATA wsaData; + int iResult = WSAStartup( MAKEWORD(2,2), &wsaData ); + if( iResult != NO_ERROR ) { + report_error( "gr_udp_source WSAStartup", "can't open socket" ); + } +#endif // Set up the address stucture for the source address and port numbers // Get the source IP address from the host name - struct hostent *hsrc = gethostbyname(src); - if(hsrc) { // if the source was provided as a host namex - d_ip_src = *(struct in_addr*)hsrc->h_addr_list[0]; - } - else { // assume it was specified as an IP address - if((ret=inet_aton(src, &d_ip_src)) == 0) { // format IP address - perror("Not a valid source IP address or host name"); - throw std::runtime_error("can't initialize source socket"); - } - } + struct addrinfo *ip_src; // store the source IP address to use + struct addrinfo hints; + memset( (void*)&hints, 0, sizeof(hints) ); + hints.ai_family = AF_INET; + hints.ai_socktype = SOCK_DGRAM; + hints.ai_protocol = IPPROTO_UDP; + hints.ai_flags = AI_PASSIVE; + char port_str[12]; + sprintf( port_str, "%d", port ); - d_port_src = htons(port_src); // format port number - - d_sockaddr_src.sin_family = AF_INET; - d_sockaddr_src.sin_addr = d_ip_src; - d_sockaddr_src.sin_port = d_port_src; + // FIXME leaks if report_error throws below + ret = getaddrinfo( host, port_str, &hints, &ip_src ); + if( ret != 0 ) + report_error("gr_udp_source/getaddrinfo", + "can't initialize source socket" ); + // FIXME leaks if report_error throws below d_temp_buff = new char[d_payload_size]; // allow it to hold up to payload_size bytes - - open(); -} -gr_udp_source_sptr -gr_make_udp_source (size_t itemsize, const char *ipaddr, - unsigned short port, int payload_size) -{ - return gr_udp_source_sptr (new gr_udp_source (itemsize, ipaddr, - port, payload_size)); -} - -gr_udp_source::~gr_udp_source () -{ - delete [] d_temp_buff; - close(); -} - -bool -gr_udp_source::open() -{ - gruel::scoped_lock guard(d_mutex); // hold mutex for duration of this function // create socket - d_socket = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP); + d_socket = socket(ip_src->ai_family, ip_src->ai_socktype, + ip_src->ai_protocol); if(d_socket == -1) { - perror("socket open"); - throw std::runtime_error("can't open socket"); + report_error("socket open","can't open socket"); } // Turn on reuse address int opt_val = 1; if(setsockopt(d_socket, SOL_SOCKET, SO_REUSEADDR, (optval_t)&opt_val, sizeof(int)) == -1) { - perror("SO_REUSEADDR"); - throw std::runtime_error("can't set socket option SO_REUSEADDR"); + report_error("SO_REUSEADDR","can't set socket option SO_REUSEADDR"); } // Don't wait when shutting down @@ -110,40 +156,61 @@ gr_udp_source::open() lngr.l_onoff = 1; lngr.l_linger = 0; if(setsockopt(d_socket, SOL_SOCKET, SO_LINGER, (optval_t)&lngr, sizeof(linger)) == -1) { - perror("SO_LINGER"); - throw std::runtime_error("can't set socket option SO_LINGER"); + if( !is_error(ENOPROTOOPT) ) { // no SO_LINGER for SOCK_DGRAM on Windows + report_error("SO_LINGER","can't set socket option SO_LINGER"); + } } +#if USE_RCV_TIMEO // Set a timeout on the receive function to not block indefinitely // This value can (and probably should) be changed + // Ignored on Cygwin +#if defined(USING_WINSOCK) + DWORD timeout = 1000; // milliseconds +#else timeval timeout; timeout.tv_sec = 1; timeout.tv_usec = 0; +#endif if(setsockopt(d_socket, SOL_SOCKET, SO_RCVTIMEO, (optval_t)&timeout, sizeof(timeout)) == -1) { - perror("SO_RCVTIMEO"); - throw std::runtime_error("can't set socket option SO_RCVTIMEO"); + report_error("SO_RCVTIMEO","can't set socket option SO_RCVTIMEO"); } +#endif // USE_RCV_TIMEO // bind socket to an address and port number to listen on - if(bind (d_socket, (sockaddr*)&d_sockaddr_src, sizeof(struct sockaddr)) == -1) { - perror("socket bind"); - throw std::runtime_error("can't bind socket"); + if(bind (d_socket, ip_src->ai_addr, ip_src->ai_addrlen) == -1) { + report_error("socket bind","can't bind socket"); } - - d_updated = true; - return d_socket != 0; + freeaddrinfo(ip_src); + } -void -gr_udp_source::close() +gr_udp_source_sptr +gr_make_udp_source (size_t itemsize, const char *ipaddr, + unsigned short port, int payload_size, bool eof, bool wait) { - gruel::scoped_lock guard(d_mutex); // hold mutex for duration of this function + return gr_udp_source_sptr (new gr_udp_source (itemsize, ipaddr, + port, payload_size, eof, wait)); +} + +gr_udp_source::~gr_udp_source () +{ + delete [] d_temp_buff; - if (d_socket){ + if (d_socket != -1){ shutdown(d_socket, SHUT_RDWR); - d_socket = 0; +#if defined(USING_WINSOCK) + closesocket(d_socket); +#else + ::close(d_socket); +#endif + d_socket = -1; } - d_updated = true; + +#if defined(USING_WINSOCK) // for Windows (with MinGW) + // free winsock resources + WSACleanup(); +#endif } int @@ -175,29 +242,85 @@ gr_udp_source::work (int noutput_items, // Update indexing of amount of bytes left in the buffer d_residual -= nbytes; - d_temp_offset = d_temp_offset+d_residual; + d_temp_offset += nbytes; + + // Return now with what we've got. + assert(nbytes % d_itemsize == 0); + return nbytes/d_itemsize; } while(1) { // get the data into our output buffer and record the number of bytes + +#if USE_SELECT + // RCV_TIMEO doesn't work on all systems (e.g., Cygwin) + // use select() instead of, or in addition to RCV_TIMEO + fd_set readfds; + timeval timeout; + timeout.tv_sec = 1; // Init timeout each iteration. Select can modify it. + timeout.tv_usec = 0; + FD_ZERO(&readfds); + FD_SET(d_socket, &readfds); + r = select(FD_SETSIZE, &readfds, NULL, NULL, &timeout); + if(r < 0) { + report_error("udp_source/select",NULL); + return -1; + } + else if(r == 0 ) { // timed out + if( d_wait ) { + // Allow boost thread interrupt, then try again + boost::this_thread::interruption_point(); + continue; + } + else + return -1; + } +#endif // USE_SELECT + // This is a non-blocking call with a timeout set in the constructor r = recv(d_socket, d_temp_buff, d_payload_size, 0); // get the entire payload or the what's available + // If r > 0, round it down to a multiple of d_itemsize + // (If sender is broken, don't propagate problem) + if (r > 0) + r = (r/d_itemsize) * d_itemsize; + // Check if there was a problem; forget it if the operation just timed out if(r == -1) { - if(errno == EAGAIN) { // handle non-blocking call timeout + if( is_error(EAGAIN) ) { // handle non-blocking call timeout #if SRC_VERBOSE printf("UDP receive timed out\n"); #endif - // Break here to allow the rest of the flow graph time to run and so ctrl-C breaks - break; + if( d_wait ) { + // Allow boost thread interrupt, then try again + boost::this_thread::interruption_point(); + continue; + } + else + return -1; } else { - perror("udp_source"); + report_error("udp_source/recv",NULL); return -1; } } + else if(r==0) { + if(d_eof) { + // zero-length packet interpreted as EOF + + #if SNK_VERBOSE + printf("\tzero-length packet received; returning EOF\n"); + #endif + + return -1; + } + else{ + // do we need to allow boost thread interrupt? + boost::this_thread::interruption_point(); + continue; + } + } else { // Calculate the number of bytes we can take from the buffer in this call nbytes = std::min(r, total_bytes-bytes_received); @@ -235,3 +358,15 @@ gr_udp_source::work (int noutput_items, return bytes_received/d_itemsize; } +// Return port number of d_socket +int gr_udp_source::get_port(void) +{ + sockaddr_in name; + socklen_t len = sizeof(name); + int ret = getsockname( d_socket, (sockaddr*)&name, &len ); + if( ret ) { + report_error("gr_udp_source/getsockname",NULL); + return -1; + } + return ntohs(name.sin_port); +} diff --git a/gnuradio-core/src/lib/io/gr_udp_source.h b/gnuradio-core/src/lib/io/gr_udp_source.h index 61d719e4d..5d30fad30 100644 --- a/gnuradio-core/src/lib/io/gr_udp_source.h +++ b/gnuradio-core/src/lib/io/gr_udp_source.h @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2007,2008,2009 Free Software Foundation, Inc. + * Copyright 2007,2008,2009,2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -24,54 +24,48 @@ #define INCLUDED_GR_UDP_SOURCE_H #include <gr_sync_block.h> -#if defined(HAVE_SOCKET) -#include <sys/socket.h> -#include <arpa/inet.h> -#elif defined(HAVE_WINDOWS_H) -#include <winsock2.h> -#include <windows.h> -#endif -#if defined(HAVE_NETINET_IN_H) -#include <netinet/in.h> -#endif - #include <gruel/thread.h> class gr_udp_source; typedef boost::shared_ptr<gr_udp_source> gr_udp_source_sptr; -gr_udp_source_sptr gr_make_udp_source(size_t itemsize, const char *src, - unsigned short port_src, int payload_size=1472); +gr_udp_source_sptr gr_make_udp_source(size_t itemsize, const char *host, + unsigned short port, + int payload_size=1472, + bool eof=true, bool wait=true); /*! * \brief Read stream from an UDP socket. * \ingroup source_blk * * \param itemsize The size (in bytes) of the item datatype - * \param src The source address as either the host name or the 'numbers-and-dots' - * IP address - * \param port_src The port number on which the socket listens for data - * \param payload_size UDP payload size by default set to - * 1472 = (1500 MTU - (8 byte UDP header) - (20 byte IP header)) + * \param host The name or IP address of the receiving host; can be + * NULL, None, or "0.0.0.0" to allow reading from any + * interface on the host + * \param port The port number on which to receive data; use 0 to + * have the system assign an unused port number + * \param payload_size UDP payload size by default set to 1472 = + * (1500 MTU - (8 byte UDP header) - (20 byte IP header)) + * \param eof Interpret zero-length packet as EOF (default: true) + * \param wait Wait for data if not immediately available + * (default: true) * */ class gr_udp_source : public gr_sync_block { - friend gr_udp_source_sptr gr_make_udp_source(size_t itemsize, const char *src, - unsigned short port_src, int payload_size); + friend gr_udp_source_sptr gr_make_udp_source(size_t itemsize, + const char *host, + unsigned short port, + int payload_size, + bool eof, bool wait); private: size_t d_itemsize; - bool d_updated; - gruel::mutex d_mutex; - - int d_payload_size; // maximum transmission unit (packet length) - int d_socket; // handle to socket - int d_socket_rcv; // handle to socket retuned in the accept call - struct in_addr d_ip_src; // store the source IP address to use - unsigned short d_port_src; // the port number to open for connections to this service - struct sockaddr_in d_sockaddr_src; // store the source sockaddr data (formatted IP address and port number) + int d_payload_size; // maximum transmission unit (packet length) + bool d_eof; // zero-length packet is EOF + bool d_wait; // wait if data if not immediately available + int d_socket; // handle to socket char *d_temp_buff; // hold buffer between calls ssize_t d_residual; // hold information about number of bytes stored in the temp buffer size_t d_temp_offset; // point to temp buffer location offset @@ -81,35 +75,29 @@ class gr_udp_source : public gr_sync_block * \brief UDP Source Constructor * * \param itemsize The size (in bytes) of the item datatype - * \param src The source address as either the host name or the 'numbers-and-dots' - * IP address - * \param port_src The port number on which the socket listens for data - * \param payload_size UDP payload size by default set to - * 1472 = (1500 MTU - (8 byte UDP header) - (20 byte IP header)) + * \param host The name or IP address of the receiving host; can be + * NULL, None, or "0.0.0.0" to allow reading from any + * interface on the host + * \param port The port number on which to receive data; use 0 to + * have the system assign an unused port number + * \param payload_size UDP payload size by default set to 1472 = + * (1500 MTU - (8 byte UDP header) - (20 byte IP header)) + * \param eof Interpret zero-length packet as EOF (default: true) + * \param wait Wait for data if not immediately available + * (default: true) */ - gr_udp_source(size_t itemsize, const char *src, unsigned short port_src, int payload_size); + gr_udp_source(size_t itemsize, const char *host, unsigned short port, + int payload_size, bool eof, bool wait); public: ~gr_udp_source(); - /*! - * \brief open a socket specified by the port and ip address info - * - * Opens a socket, binds to the address, and waits for a connection - * over UDP. If any of these fail, the fuction retuns the error and exits. - */ - bool open(); - - /*! - * \brief Close current socket. - * - * Shuts down read/write on the socket - */ - void close(); - /*! \brief return the PAYLOAD_SIZE of the socket */ int payload_size() { return d_payload_size; } + /*! \brief return the port number of the socket */ + int get_port(); + // should we export anything else? int work(int noutput_items, diff --git a/gnuradio-core/src/lib/io/gr_udp_source.i b/gnuradio-core/src/lib/io/gr_udp_source.i index fb39dad68..2001f33e9 100644 --- a/gnuradio-core/src/lib/io/gr_udp_source.i +++ b/gnuradio-core/src/lib/io/gr_udp_source.i @@ -1,6 +1,6 @@ /* -*- c++ -*- */ /* - * Copyright 2007 Free Software Foundation, Inc. + * Copyright 2007,2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * @@ -23,20 +23,19 @@ GR_SWIG_BLOCK_MAGIC(gr,udp_source) gr_udp_source_sptr -gr_make_udp_source (size_t itemsize, const char *src, - unsigned short port_src, int payload_size=1472); +gr_make_udp_source (size_t itemsize, const char *host, + unsigned short port, int payload_size=1472, + bool eof=true, bool wait=true) throw (std::runtime_error); class gr_udp_source : public gr_sync_block { protected: - gr_udp_source (size_t itemsize, const char *src, - unsigned short port_src, int payload_size); + gr_udp_source (size_t itemsize, const char *host, + unsigned short port, int payload_size, bool eof, bool wait) throw (std::runtime_error); public: ~gr_udp_source (); - bool open(); - void close(); int payload_size() { return d_payload_size; } - + int get_port(); }; diff --git a/gnuradio-core/src/python/gnuradio/gr/Makefile.am b/gnuradio-core/src/python/gnuradio/gr/Makefile.am index 3aff89ee7..341f58812 100644 --- a/gnuradio-core/src/python/gnuradio/gr/Makefile.am +++ b/gnuradio-core/src/python/gnuradio/gr/Makefile.am @@ -1,5 +1,5 @@ # -# Copyright 2004,2005,2006,2008 Free Software Foundation, Inc. +# Copyright 2004,2005,2006,2008,2010 Free Software Foundation, Inc. # # This file is part of GNU Radio # @@ -97,4 +97,5 @@ noinst_PYTHON = \ qa_unpack_k_bits.py \ qa_repeat.py \ qa_scrambler.py \ + qa_udp_sink_source.py \ qa_vector_sink_source.py diff --git a/gnuradio-core/src/python/gnuradio/gr/qa_udp_sink_source.py b/gnuradio-core/src/python/gnuradio/gr/qa_udp_sink_source.py new file mode 100755 index 000000000..b00b26bbe --- /dev/null +++ b/gnuradio-core/src/python/gnuradio/gr/qa_udp_sink_source.py @@ -0,0 +1,99 @@ +#!/usr/bin/env python +# +# Copyright 2008,2010 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, gr_unittest +from threading import Timer + +class test_sink_source(gr_unittest.TestCase): + + def setUp(self): + self.tb_snd = gr.top_block() + self.tb_rcv = gr.top_block() + + def tearDown(self): + self.tb_rcv = None + self.tb_snd = None + + def test_001(self): + port = 65500 + + n_data = 16 + src_data = [float(x) for x in range(n_data)] + expected_result = tuple(src_data) + src = gr.vector_source_f(src_data) + udp_snd = gr.udp_sink( gr.sizeof_float, 'localhost', port ) + self.tb_snd.connect( src, udp_snd ) + + udp_rcv = gr.udp_source( gr.sizeof_float, 'localhost', port ) + dst = gr.vector_sink_f() + self.tb_rcv.connect( udp_rcv, dst ) + + self.tb_rcv.start() + self.tb_snd.run() + udp_snd.disconnect() + self.timeout = False + q = Timer(3.0,self.stop_rcv) + q.start() + self.tb_rcv.wait() + q.cancel() + + result_data = dst.data() + self.assertEqual(expected_result, result_data) + self.assert_(not self.timeout) + + def test_002(self): + udp_rcv = gr.udp_source( gr.sizeof_float, '0.0.0.0', 0, eof=False ) + rcv_port = udp_rcv.get_port() + + udp_snd = gr.udp_sink( gr.sizeof_float, '127.0.0.1', 65500 ) + udp_snd.connect( 'localhost', rcv_port ) + + n_data = 16 + src_data = [float(x) for x in range(n_data)] + expected_result = tuple(src_data) + src = gr.vector_source_f(src_data) + dst = gr.vector_sink_f() + + self.tb_snd.connect( src, udp_snd ) + self.tb_rcv.connect( udp_rcv, dst ) + + self.tb_rcv.start() + self.tb_snd.run() + udp_snd.disconnect() + self.timeout = False + q = Timer(3.0,self.stop_rcv) + q.start() + self.tb_rcv.wait() + q.cancel() + + result_data = dst.data() + self.assertEqual(expected_result, result_data) + self.assert_(self.timeout) # source ignores EOF? + + def stop_rcv(self): + self.timeout = True + self.tb_rcv.stop() + #print "tb_rcv stopped by Timer" + +if __name__ == '__main__': + gr_unittest.main () + |