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-rw-r--r--src/ghdlserver/ghdlserver.c515
1 files changed, 309 insertions, 206 deletions
diff --git a/src/ghdlserver/ghdlserver.c b/src/ghdlserver/ghdlserver.c
index 1b1e706..410a2ff 100644
--- a/src/ghdlserver/ghdlserver.c
+++ b/src/ghdlserver/ghdlserver.c
@@ -1,8 +1,11 @@
/************************************************************************************
* <ghdlserver.c> eSim Team, FOSSEE, IIT-Bombay
************************************************************************************
+ * 8.June.2020 - Bladen Martin - Added OS (Windows and Linux) dependent
+ * - Rahul Paknikar preprocessors for ease of maintenance
+ *
* 28.May.2020 - Bladen Martin - Termination of testbench: Replaced Process ID
- * mechanism with socket connection from client
+ * - Rahul Paknikar mechanism with socket connection from client
* receiving the special close message
************************************************************************************
************************************************************************************
@@ -29,36 +32,46 @@
#include "ghdlserver.h"
#include "uthash.h"
#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <assert.h>
-#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <signal.h>
#include <unistd.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <arpa/inet.h>
-#include <sys/time.h>
-#include <netinet/in.h>
-#include <netdb.h>
+#include <sys/types.h>
+#include <sys/time.h>
#include <limits.h>
#include <time.h>
#include <errno.h>
-#include <syslog.h>
+
+#ifdef __linux__
+ #include <sys/socket.h>
+ #include <arpa/inet.h>
+ #include <netinet/in.h>
+ #include <netdb.h>
+ #include <syslog.h>
+#elif _WIN32
+ #include <ws2tcpip.h>
+ #include <winsock2.h>
+ #include <eventsys.h>
+ #include <windows.h>
+#endif
#define _XOPEN_SOURCE 500
#define MAX_NUMBER_PORT 100
#define NGSPICE "ngspice" // 17.Mar.2017 - RM
-static FILE* pid_file;
+static FILE *pid_file;
static char pid_filename[80];
-static char* Out_Port_Array[MAX_NUMBER_PORT];
-static int out_port_num = 0;
+static char *Out_Port_Array[MAX_NUMBER_PORT];
+static int out_port_num = 0;
static int server_socket_id = -1;
static int sendto_sock; // 22.Feb.2017 - RM - Kludge
static int prev_sendto_sock; // 22.Feb.2017 - RM - Kludge
-static int pid_file_created; // 10.Mar.2017 - RM
+static int pid_file_created; // 10.Mar.2017 - RM
-extern char* __progname; // 26.Feb.2017 May not be portable to non-GNU systems.
+#ifdef __linux__
+ extern char* __progname; // 26.Feb.2017 May not be portable to non-GNU systems.
+#endif
void Vhpi_Exit(int sig);
@@ -76,7 +89,7 @@ static char* curtim(void)
{
static char ct[50];
struct timeval tv;
- struct tm* ptm;
+ struct tm *ptm;
long milliseconds;
char time_string[40];
@@ -91,48 +104,52 @@ static char* curtim(void)
#ifdef DEBUG
-static void print_hash_table(void)
+static void print_hash_table(void)
{
struct my_struct *sptr;
-
- for(sptr=users; sptr != NULL; sptr=sptr->hh.next)
- syslog(LOG_INFO, "Hash table:val:%s: key: %s", sptr->val, sptr->key);
+
+ #ifdef __linux__
+ for(sptr = users; sptr != NULL; sptr = sptr->hh.next)
+ syslog(LOG_INFO, "Hash table:val:%s: key: %s", sptr->val, sptr->key);
+ #endif
}
#endif
-static void parse_buffer(int sock_id, char* receive_buffer)
+static void parse_buffer(int sock_id, char *receive_buffer)
{
static int rcvnum;
+
+ #ifdef __linux__
+ syslog(LOG_INFO, "RCVD RCVN:%d from CLT:%d buffer : %s",
+ rcvnum++, sock_id, receive_buffer);
+ #endif
- syslog(LOG_INFO,"RCVD RCVN:%d from CLT:%d buffer : %s",
- rcvnum++, sock_id,receive_buffer);
-
- /*Parsing buffer to store in hash table */
+ /*Parsing buffer to store in hash table */
char *rest;
char *token;
- char *ptr1=receive_buffer;
+ char *ptr1 = receive_buffer;
char *var;
char *value;
- // Processing tokens.
- while(token = strtok_r(ptr1, ",", &rest))
- {
- ptr1 = rest;
- while(var=strtok_r(token, ":", &value))
- {
- s = (struct my_struct*)malloc(sizeof(struct my_struct));
- strncpy(s->key, var, 64);
- strncpy(s->val, value, 64);
- HASH_ADD_STR(users, key, s );
- break;
- }
- }
-
- s = (struct my_struct*)malloc(sizeof(struct my_struct));
- strncpy(s->key, "sock_id", 64);
- snprintf(s->val,64, "%d", sock_id);
- HASH_ADD_STR(users, key, s);
+ // Processing tokens.
+ while (token = strtok_r(ptr1, ",", &rest))
+ {
+ ptr1 = rest;
+ while (var = strtok_r(token, ":", &value))
+ {
+ s = (struct my_struct *) malloc(sizeof(struct my_struct));
+ strncpy(s->key, var, 64);
+ strncpy(s->val, value, 64);
+ HASH_ADD_STR(users, key, s);
+ break;
+ }
+ }
+
+ s = (struct my_struct *) malloc(sizeof(struct my_struct));
+ strncpy(s->key, "sock_id", 64);
+ snprintf(s->val, 64, "%d", sock_id);
+ HASH_ADD_STR(users, key, s);
}
@@ -140,47 +157,67 @@ static void parse_buffer(int sock_id, char* receive_buffer)
// 26.Sept.2019 - RP - added parameter of socket ip
static int create_server(int port_number, char my_ip[], int max_connections)
{
- int sockfd, reuse = 1;
- struct sockaddr_in serv_addr;
+ int sockfd, reuse = 1;
+ struct sockaddr_in serv_addr;
+
+ sockfd = socket(AF_INET, SOCK_STREAM, 0);
+
+ if (sockfd < 0)
+ {
+ #ifdef __linux__
+ fprintf(stderr, "%s- Error: in opening socket at server \n", __progname);
+
+ #elif _WIN32
+ fprintf(stderr, "Error: in opening socket at server \n");
- sockfd = socket(AF_INET, SOCK_STREAM, 0);
+ #endif
- if (sockfd < 0)
- {
- fprintf(stderr, "%s- Error: in opening socket at server \n", __progname);
- //exit(1);
- return -1;
- }
+ //exit(1);
+ return -1;
+ }
+ /* 18.May.2020 - BM - typecast optval field to char* */
/* 20.Mar.2017 - RM - SO_REUSEADDR option. To take care of TIME_WAIT state.*/
- int ret = setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof(int));
-
- /* 08.Nov.2019 - RP - SO_REUSEPORT and SO_DONTROUTE option.*/
- ret += setsockopt(sockfd, SOL_SOCKET, SO_REUSEPORT, &reuse, sizeof(int));
- ret += setsockopt(sockfd, SOL_SOCKET, SO_DONTROUTE, &reuse, sizeof(int));
-
- if (ret < 0)
- {
- syslog(LOG_ERR, "create_server:setsockopt() failed....");
- // close(sockfd);
- // return -1;
- }
-
- bzero((char *) &serv_addr, sizeof(serv_addr));
- serv_addr.sin_family = AF_INET;
- serv_addr.sin_addr.s_addr = inet_addr(my_ip); // 26.Sept.2019 - RP - Bind to specific IP only
- serv_addr.sin_port = htons(port_number);
-
- if (bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0)
- {
- fprintf(stderr,"%s- Error: could not bind socket to port %d\n",
- __progname, port_number);
- syslog(LOG_ERR, "Error: could not bind socket to port %d", port_number);
- close(sockfd);
- exit(1);
- }
-
- // Start listening on the server.
+ int ret = setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (char *) &reuse, sizeof(int));
+
+ /* 08.Nov.2019 - RP - SO_REUSEPORT and SO_DONTROUTE option.*/
+ /* 08.June.2020 - BM - SO_REUSEPORT only available in Linux */
+ #ifdef __linux__
+ ret += setsockopt(sockfd, SOL_SOCKET, SO_REUSEPORT, &reuse, sizeof(int));
+ #endif
+
+ ret += setsockopt(sockfd, SOL_SOCKET, SO_DONTROUTE, (char *) &reuse, sizeof(int));
+ if (ret < 0)
+ {
+ #ifdef __linux__
+ syslog(LOG_ERR, "create_server:setsockopt() failed....");
+ #endif
+ // close(sockfd);
+ // return -1;
+ }
+
+ memset(&serv_addr, 0, sizeof(serv_addr));
+ serv_addr.sin_family = AF_INET;
+ serv_addr.sin_addr.s_addr = inet_addr(my_ip); // 26.Sept.2019 - RP - Bind to specific IP only
+ serv_addr.sin_port = htons(port_number);
+
+ if (bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0)
+ {
+ #ifdef __linux__
+ fprintf(stderr, "%s- Error: could not bind socket to port %d\n", __progname, port_number);
+ syslog(LOG_ERR, "Error: could not bind socket to port %d", port_number);
+ close(sockfd);
+
+ #elif _WIN32
+ fprintf(stderr, "Error: could not bind socket to port %d\n", port_number);
+ closesocket(sockfd);
+
+ #endif
+
+ exit(1);
+ }
+
+ // Start listening on the server.
listen(sockfd, max_connections);
return sockfd;
@@ -188,37 +225,42 @@ static int create_server(int port_number, char my_ip[], int max_connections)
// The server to wait (blocking) for a client connection.
-static int connect_to_client(int server_fd)
-{
- int ret_val = 0;
- int newsockfd = -1;
- socklen_t clilen;
- struct sockaddr_in cli_addr;
-
- clilen = sizeof(cli_addr);
-
- /* 08.Nov.2019 - RP - Blocking Socket (Accept) */
- newsockfd = accept(server_fd, (struct sockaddr *) &cli_addr, &clilen);
- if (newsockfd >= 0)
- {
- syslog(LOG_INFO, "SRV:%d New Client Connection CLT:%d", server_fd, newsockfd);
- }
- else
- {
- syslog(LOG_ERR,"Error: failed in accept(), socket=%d", server_fd);
- exit(1);
- }
+static int connect_to_client(int server_fd)
+{
+ int ret_val = 0;
+ int newsockfd = -1;
+ socklen_t clilen;
+ struct sockaddr_in cli_addr;
- return newsockfd;
-}
+ clilen = sizeof(cli_addr);
+
+ /* 08.Nov.2019 - RP - Blocking Socket (Accept) */
+ newsockfd = accept(server_fd, (struct sockaddr *) &cli_addr, &clilen);
+ if (newsockfd >= 0)
+ {
+ #ifdef _linux_
+ syslog(LOG_INFO, "SRV:%d New Client Connection CLT:%d", server_fd, newsockfd);
+ #endif
+ }
+ else
+ {
+ #ifdef __linux__
+ syslog(LOG_ERR, "Error: failed in accept(), socket=%d", server_fd);
+ #endif
+
+ exit(1);
+ }
+
+ return newsockfd;
+}
//Receive string from socket and put it inside buffer.
-static void receive_string(int sock_id, char* buffer)
-{
- int nbytes = 0;
+static void receive_string(int sock_id, char *buffer)
+{
+ int nbytes = 0;
- /* 08.Nov.2019 - RP - Blocking Socket - Receive */
+ /* 08.Nov.2019 - RP - Blocking Socket - Receive */
nbytes = recv(sock_id, buffer, MAX_BUF_SIZE, 0);
if (nbytes <= 0)
{
@@ -235,51 +277,62 @@ static void receive_string(int sock_id, char* buffer)
}
-static void Data_Send(int sockid)
-{
- static int trnum;
- char* out;
+static void Data_Send(int sockid)
+{
+ static int trnum;
+ char *out;
- int i;
- char colon = ':';
- char semicolon = ';';
- int wrt_retries = 0;
- int ret;
+ int i;
+ char colon = ':';
+ char semicolon = ';';
+ int wrt_retries = 0;
+ int ret;
- s = NULL;
+ s = NULL;
- out = calloc(1, 2048);
+ out = calloc(1, 2048);
- // 5.July.2019 - RP - loop to send all ports at once for an event
- for (i=0; i<out_port_num; i++)
- {
- HASH_FIND_STR(users,Out_Port_Array[i],s);
- if (strcmp(Out_Port_Array[i], s->key) == 0)
- {
- strncat(out, s->key, strlen(s->key));
+ // 5.July.2019 - RP - loop to send all ports at once for an event
+ for (i = 0; i < out_port_num; i++)
+ {
+ HASH_FIND_STR(users, Out_Port_Array[i], s);
+ if (strcmp(Out_Port_Array[i], s->key) == 0)
+ {
+ strncat(out, s->key, strlen(s->key));
strncat(out, &colon, 1);
strncat(out, s->val, strlen(s->val));
strncat(out, &semicolon, 1);
}
else
{
- syslog(LOG_ERR,"The %s's value not found in the table.",
- Out_Port_Array[i]);
+ #ifdef __linux__
+ syslog(LOG_ERR,"The %s's value not found in the table.",
+ Out_Port_Array[i]);
+ #endif
+
free(out);
+ printf("Error! The %s's value not found in the table. Exiting simulation...",
+ Out_Port_Array[i]);
return;
}
}
- /* 08.Nov.2019 - RP - Blocking Socket (Send) */
- if ((send(sockid, out, strlen(out), 0)) == -1)
- {
- syslog(LOG_ERR,"Failure sending to CLT:%d buffer:%s", sockid, out);
- exit(1);
- }
+ /* 08.Nov.2019 - RP - Blocking Socket (Send) */
+ if ((send(sockid, out, strlen(out), 0)) == -1)
+ {
+ #ifdef __linux__
+ syslog(LOG_ERR, "Failure sending to CLT:%d buffer:%s", sockid, out);
+ #endif
- syslog(LOG_INFO,"SNT:TRNUM:%d to CLT:%d buffer: %s", trnum++, sockid, out);
- free(out);
-}
+ exit(1);
+ }
+
+ #ifdef __linux__
+ syslog(LOG_INFO, "SNT:TRNUM:%d to CLT:%d buffer: %s", trnum++, sockid, out);
+ #endif
+
+ free(out);
+}
// 26.Sept.2019 - RP - added parameter of socket ip
@@ -287,94 +340,125 @@ void Vhpi_Initialize(int sock_port, char sock_ip[])
{
DEFAULT_SERVER_PORT = sock_port;
- signal(SIGINT,Vhpi_Exit);
- signal(SIGTERM,Vhpi_Exit);
- signal(SIGUSR1, Vhpi_Exit); //10.Mar.2017 - RM
+ signal(SIGINT, Vhpi_Exit);
+ signal(SIGTERM, Vhpi_Exit);
+
+ #ifdef _WIN32
+ WSADATA WSAData;
+ WSAStartup(MAKEWORD(2, 2), &WSAData);
+ #endif
int try_limit = 100;
- while(try_limit > 0)
- {
- // 26.Sept.2019 - RP
- server_socket_id = create_server(DEFAULT_SERVER_PORT, sock_ip, DEFAULT_MAX_CONNECTIONS);
+ while (try_limit > 0)
+ {
+ // 26.Sept.2019 - RP
+ server_socket_id = create_server(DEFAULT_SERVER_PORT, sock_ip, DEFAULT_MAX_CONNECTIONS);
- if(server_socket_id >= 0)
+ if (server_socket_id >= 0)
{
- syslog(LOG_INFO,"Started the server on port %d SRV:%d",
+ #ifdef __linux__
+ syslog(LOG_INFO, "Started the server on port %d SRV:%d",
DEFAULT_SERVER_PORT, server_socket_id);
+ #endif
+
break;
}
-
- syslog(LOG_ERR,"Could not start server on port %d,will try again",
+
+ #ifdef __linux__
+ syslog(LOG_ERR, "Could not start server on port %d,will try again",
DEFAULT_SERVER_PORT);
+ #endif
+
usleep(1000);
try_limit--;
-
- if(try_limit==0)
+
+ if (try_limit == 0)
{
- syslog(LOG_ERR,
+ #ifdef __linux__
+ syslog(LOG_ERR,
"Error:Tried to start server on port %d, failed..giving up.",
DEFAULT_SERVER_PORT);
+ #endif
+
exit(1);
}
}
-
- //Reading Output Port name and storing in Out_Port_Array;
- char* line = NULL;
- size_t len = 0;
+
+ //Reading Output Port name and storing in Out_Port_Array;
+ char *line = NULL;
+ size_t len = 0;
ssize_t read;
char *token;
FILE *fp;
struct timespec ts;
- fp=fopen("connection_info.txt","r");
+ fp = fopen("connection_info.txt", "r");
if (!fp)
{
- syslog(LOG_ERR,"Vhpi_Initialize: Failed to open connection_info.txt. Exiting...");
+ #ifdef __linux__
+ syslog(LOG_ERR,"Vhpi_Initialize: Failed to open connection_info.txt. Exiting...");
+ #endif
+
exit(1);
}
- line = (char*) malloc(80);
- while ((read = getline(&line, &len, fp)) != -1)
- {
- if (strstr(line,"OUT") != NULL || strstr(line,"out") != NULL)
- {
- strtok_r(line, " ",&token);
- Out_Port_Array[out_port_num] = line;
- out_port_num++;
- }
- line = (char*) malloc(80);
- }
+ line = (char *) malloc(80);
+
+ #ifdef __linux__
+ while ((read = getline(&line, &len, fp)) != -1)
+ {
+ if (strstr(line, "OUT") != NULL || strstr(line, "out") != NULL)
+ {
+ strtok_r(line, " ", &token);
+ Out_Port_Array[out_port_num] = line;
+ out_port_num++;
+ }
+ line = (char *) malloc(80);
+ }
+
+ #elif _WIN32
+ while (fgets(line, sizeof(line), fp) != NULL)
+ {
+ if (strstr(line, "OUT") != NULL || strstr(line, "out") != NULL)
+ {
+ strtok_r(line, " ", &token);
+ Out_Port_Array[out_port_num] = line;
+ out_port_num++;
+ }
+ line = (char *) malloc(80);
+ }
+
+ #endif
+
fclose(fp);
free(line);
ts.tv_sec = 2;
ts.tv_nsec = 0;
nanosleep(&ts, NULL);
-
- // 10.Mar.2017 - RM - Create PID file for the test bench.
}
-void Vhpi_Set_Port_Value(char *port_name,char *port_value,int port_width)
+void Vhpi_Set_Port_Value(char *port_name, char *port_value, int port_width)
{
- s = (struct my_struct*)malloc(sizeof(struct my_struct));
- strncpy(s->key, port_name,64);
- strncpy(s->val,port_value,64);
- HASH_ADD_STR( users, key, s );
+ s = (struct my_struct *) malloc(sizeof(struct my_struct));
+ strncpy(s->key, port_name, 64);
+ strncpy(s->val, port_value, 64);
+ HASH_ADD_STR(users, key, s);
}
-void Vhpi_Get_Port_Value(char* port_name,char* port_value,int port_width)
+void Vhpi_Get_Port_Value(char *port_name, char *port_value, int port_width)
{
- HASH_FIND_STR(users,port_name,s);
- if(s)
- {
- snprintf(port_value,sizeof(port_value),"%s",s->val);
- HASH_DEL(users, s);
- free(s);
- s=NULL;
- }
+ HASH_FIND_STR(users, port_name, s);
+ if (s)
+ {
+ snprintf(port_value, sizeof(port_value), "%s", s->val);
+ HASH_DEL(users, s);
+ free(s);
+ s = NULL;
+ }
}
@@ -383,36 +467,55 @@ void Vhpi_Listen()
sendto_sock = connect_to_client(server_socket_id); // 22.Feb.2017 - RM - Kludge
char receive_buffer[MAX_BUF_SIZE];
receive_string(sendto_sock, receive_buffer);
-
- syslog(LOG_INFO, "Vhpi_Listen:New socket connection CLT:%d",sendto_sock);
- if(strcmp(receive_buffer, "END")==0)
+ #ifdef __linux__
+ syslog(LOG_INFO, "Vhpi_Listen:New socket connection CLT:%d", sendto_sock);
+ #endif
+
+ if (strcmp(receive_buffer, "END") == 0)
{
- syslog(LOG_INFO, "RCVD:CLOSE REQUEST from CLT:%d", sendto_sock);
+ #ifdef __linux__
+ syslog(LOG_INFO, "RCVD:CLOSE REQUEST from CLT:%d", sendto_sock);
+ #endif
+
Vhpi_Exit(0);
- }
+ }
- parse_buffer(sendto_sock, receive_buffer);
+ parse_buffer(sendto_sock, receive_buffer);
}
-void Vhpi_Send()
+void Vhpi_Send()
{
-// 22.Feb.2017 - RM - Kludge
- if (prev_sendto_sock != sendto_sock)
- {
- Data_Send(sendto_sock);
+ // 22.Feb.2017 - RM - Kludge
+ if (prev_sendto_sock != sendto_sock)
+ {
+ Data_Send(sendto_sock);
- close(prev_sendto_sock); // 08.Nov.2019 - RP - Close previous socket
- prev_sendto_sock = sendto_sock;
- }
-// 22.Feb.2017 End kludge
+ #ifdef __linux__
+ close(prev_sendto_sock); // 08.Nov.2019 - RP - Close previous socket
+
+ #elif _WIN32
+ closesocket(prev_sendto_sock);
+
+ #endif
+
+ prev_sendto_sock = sendto_sock;
+ }
+ // 22.Feb.2017 End kludge
}
-void Vhpi_Exit(int sig)
-{
- close(server_socket_id);
- syslog(LOG_INFO, "*** Closed VHPI link. Exiting... ***");
- exit(0);
-}
+void Vhpi_Exit(int sig)
+{
+ #ifdef __linux__
+ close(server_socket_id);
+ syslog(LOG_INFO, "*** Closed VHPI link. Exiting... ***");
+
+ #elif _WIN32
+ closesocket(server_socket_id);
+
+ #endif
+
+ exit(0);
+} \ No newline at end of file
generated by cgit (git 2.34.1) at 2024-12-22 15:35:09 +0000