split tracer in local/remote and some work on the new gui

common/utils/T/tracer/Makefile

-CC=gcc
-CFLAGS=-Wall -g -pthread -DT_TRACER
+all: local remote
 
-#CFLAGS += -O3 -ffast-math -fomit-frame-pointer
+local:
+	make -f Makefile.local
 
-LIBS=-lX11 -lm
-
-#comment those two lines to NOT use shared memory
-CFLAGS += -DT_USE_SHARED_MEMORY
-LIBS += -lrt
-
-PROG=tracer
-OBJS=main.o plot.o database.o forward.o gui.o
-
-$(PROG): gui/gui.a $(OBJS)
-	$(CC) $(CFLAGS) -o $(PROG) $(OBJS) gui/gui.a $(LIBS)
-
-.PHONY: gui/gui.a
-
-gui/gui.a:
-	cd gui && make
-
-%.o: %.c
-	$(CC) $(CFLAGS) -c -o $@ $<
-
-main.o: ../T_IDs.h ../T_defs.h
+remote:
+	make -f Makefile.remote
 
 clean:
-	rm -f *.o $(PROG) core
-	cd gui && make clean
+	make -f Makefile.local clean
+	make -f Makefile.remote clean

common/utils/T/tracer/Makefile.local

+CC=gcc
+CFLAGS=-Wall -g -pthread -DT_TRACER
+
+#CFLAGS += -O3 -ffast-math -fomit-frame-pointer
+
+CFLAGS += -DT_USE_SHARED_MEMORY
+LIBS += -lrt
+
+PROG=tracer_local
+OBJS=local.o forward.o
+
+$(PROG): $(OBJS)
+	$(CC) $(CFLAGS) -o $(PROG) $(OBJS) $(LIBS)
+
+%.o: %.c
+	$(CC) $(CFLAGS) -c -o $@ $<
+
+main.o: ../T_IDs.h ../T_defs.h
+
+clean:
+	rm -f *.o $(PROG) core

common/utils/T/tracer/Makefile.remote

+CC=gcc
+CFLAGS=-Wall -g -pthread -DT_TRACER
+
+#CFLAGS += -O3 -ffast-math -fomit-frame-pointer
+
+LIBS=-lX11 -lm
+
+PROG=tracer_remote
+OBJS=remote.o plot.o database.o gui.o
+
+$(PROG): gui/gui.a $(OBJS)
+	$(CC) $(CFLAGS) -o $(PROG) $(OBJS) gui/gui.a $(LIBS)
+
+.PHONY: gui/gui.a
+
+gui/gui.a:
+	cd gui && make
+
+%.o: %.c
+	$(CC) $(CFLAGS) -c -o $@ $<
+
+main.o: ../T_IDs.h ../T_defs.h
+
+clean:
+	rm -f *.o $(PROG) core
+	cd gui && make clean

common/utils/T/tracer/defs.h

@@ -27,4 +27,9 @@ void *forwarder(char *ip, int port);
 void forward(void *forwarder, char *buf, int size);
 void forward_start_client(void *forwarder, int socket);
 
+/* T gui functions */
+void t_gui_start(void);
+void t_gui_set_input_signal(int eNB, int frame, int subframe, int antenna,
+    int size, void *buf);
+
 #endif /* _TRACER_DEFS_H_ */

common/utils/T/tracer/forward.c

@@ -122,6 +122,9 @@ void *forwarder(char *ip, int port)
   f->sc = -1;
   f->head = f->tail = NULL;
 
+  printf("connecting to remote tracer %s:%d\n", ip, port);
+
+again:
   f->s = socket(AF_INET, SOCK_STREAM, 0);
   if (f->s == -1) { perror("socket"); exit(1); }
 
@@ -129,8 +132,15 @@ void *forwarder(char *ip, int port)
   a.sin_port = htons(port);
   a.sin_addr.s_addr = inet_addr(ip);
 
-  if (connect(f->s, (struct sockaddr *)&a, sizeof(a)) == -1)
-    { perror("connect"); exit(1); }
+  if (connect(f->s, (struct sockaddr *)&a, sizeof(a)) == -1) {
+    perror("connect");
+    close(f->s);
+    printf("trying again in 1s\n");
+    sleep(1);
+    goto again;
+  }
+
+  printf("connected\n");
 
   new_thread(data_sender, f);
 

common/utils/T/tracer/local.c

+#include <stdio.h>
+#include <string.h>
+#include <netinet/ip.h>
+#include <arpa/inet.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <pthread.h>
+
+#include "defs.h"
+
+#include "../T_defs.h"
+
+T_cache_t *T_cache;
+int T_busylist_head;
+int T_pos;
+
+int get_connection(char *addr, int port)
+{
+  struct sockaddr_in a;
+  socklen_t alen;
+  int s, t;
+
+  printf("waiting for connection on %s:%d\n", addr, port);
+
+  s = socket(AF_INET, SOCK_STREAM, 0);
+  if (s == -1) { perror("socket"); exit(1); }
+  t = 1;
+  if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &t, sizeof(int)))
+    { perror("setsockopt"); exit(1); }
+
+  a.sin_family = AF_INET;
+  a.sin_port = htons(port);
+  a.sin_addr.s_addr = inet_addr(addr);
+
+  if (bind(s, (struct sockaddr *)&a, sizeof(a))) { perror("bind"); exit(1); }
+  if (listen(s, 5)) { perror("bind"); exit(1); }
+  alen = sizeof(a);
+  t = accept(s, (struct sockaddr *)&a, &alen);
+  if (t == -1) { perror("accept"); exit(1); }
+  close(s);
+
+  printf("connected\n");
+
+  return t;
+}
+
+void wait_message(void)
+{
+  while (T_cache[T_busylist_head].busy == 0) usleep(1000);
+}
+
+void init_shm(void)
+{
+  int i;
+  int s = shm_open(T_SHM_FILENAME, O_RDWR | O_CREAT /*| O_SYNC*/, 0666);
+  if (s == -1) { perror(T_SHM_FILENAME); abort(); }
+  if (ftruncate(s, T_CACHE_SIZE * sizeof(T_cache_t)))
+    { perror(T_SHM_FILENAME); abort(); }
+  T_cache = mmap(NULL, T_CACHE_SIZE * sizeof(T_cache_t),
+                 PROT_READ | PROT_WRITE, MAP_SHARED, s, 0);
+  if (T_cache == NULL)
+    { perror(T_SHM_FILENAME); abort(); }
+  close(s);
+
+  /* let's garbage the memory to catch some potential problems
+   * (think multiprocessor sync issues, barriers, etc.)
+   */
+  memset(T_cache, 0x55, T_CACHE_SIZE * sizeof(T_cache_t));
+  for (i = 0; i < T_CACHE_SIZE; i++) T_cache[i].busy = 0;
+}
+
+void new_thread(void *(*f)(void *), void *data)
+{
+  pthread_t t;
+  pthread_attr_t att;
+
+  if (pthread_attr_init(&att))
+    { fprintf(stderr, "pthread_attr_init err\n"); exit(1); }
+  if (pthread_attr_setdetachstate(&att, PTHREAD_CREATE_DETACHED))
+    { fprintf(stderr, "pthread_attr_setdetachstate err\n"); exit(1); }
+  if (pthread_attr_setstacksize(&att, 10000000))
+    { fprintf(stderr, "pthread_attr_setstacksize err\n"); exit(1); }
+  if (pthread_create(&t, &att, f, data))
+    { fprintf(stderr, "pthread_create err\n"); exit(1); }
+  if (pthread_attr_destroy(&att))
+    { fprintf(stderr, "pthread_attr_destroy err\n"); exit(1); }
+}
+
+void usage(void)
+{
+  printf(
+"tracer - local side\n"
+"options:\n"
+"    -l <IP address> <port>    local side (forwards packets to remote IP:port)\n"
+  );
+  exit(1);
+}
+
+int main(int n, char **v)
+{
+  int s;
+  int i;
+  char *remote_ip = NULL;
+  int remote_port = -1;
+  int port = 2020;
+  void *f;
+
+  for (i = 1; i < n; i++) {
+    if (!strcmp(v[i], "-h") || !strcmp(v[i], "--help")) usage();
+    if (!strcmp(v[i], "-l")) { if (i > n-3) usage();
+      remote_ip = v[++i]; remote_port = atoi(v[++i]); continue; }
+    printf("ERROR: unknown option %s\n", v[i]);
+    usage();
+  }
+
+  if (remote_port == -1 || remote_ip == NULL) usage();
+
+  f = forwarder(remote_ip, remote_port);
+  init_shm();
+  s = get_connection("127.0.0.1", port);
+
+  forward_start_client(f, s);
+
+  /* read messages */
+  while (1) {
+    wait_message();
+    __sync_synchronize();
+    forward(f, T_cache[T_busylist_head].buffer,
+            T_cache[T_busylist_head].length);
+    T_cache[T_busylist_head].busy = 0;
+    T_busylist_head++;
+    T_busylist_head &= T_CACHE_SIZE - 1;
+  }
+  return 0;
+}

common/utils/T/tracer/main.c → common/utils/T/tracer/remote.c

@@ -12,6 +12,8 @@
 
 #include "defs.h"
 
+#define DEFAULT_REMOTE_PORT 2020
+
 #define T_ID(x) x
 #include "../T_IDs.h"
 #include "../T_defs.h"
@@ -25,26 +27,6 @@ void *pusch_iq_plot;
 void *pucch_iq_plot;
 void *pucch_plot;
 
-#ifdef T_USE_SHARED_MEMORY
-
-T_cache_t *T_cache;
-int T_busylist_head;
-int T_pos;
-
-static inline int GET(int s, void *out, int count)
-{
-  if (count == 1) {
-    *(char *)out = T_cache[T_busylist_head].buffer[T_pos];
-    T_pos++;
-    return 1;
-  }
-  memcpy(out, T_cache[T_busylist_head].buffer + T_pos, count);
-  T_pos += count;
-  return count;
-}
-
-#else /* T_USE_SHARED_MEMORY */
-
 #define GET fullread
 
 int fullread(int fd, void *_buf, int count)
@@ -62,14 +44,14 @@ int fullread(int fd, void *_buf, int count)
   return ret;
 }
 
-#endif /* T_USE_SHARED_MEMORY */
-
 int get_connection(char *addr, int port)
 {
   struct sockaddr_in a;
   socklen_t alen;
   int s, t;
 
+  printf("waiting for connection on %s:%d\n", addr, port);
+
   s = socket(AF_INET, SOCK_STREAM, 0);
   if (s == -1) { perror("socket"); exit(1); }
   t = 1;
@@ -86,6 +68,9 @@ int get_connection(char *addr, int port)
   t = accept(s, (struct sockaddr *)&a, &alen);
   if (t == -1) { perror("accept"); exit(1); }
   close(s);
+
+  printf("connected\n");
+
   return t;
 }
 
@@ -107,9 +92,6 @@ void get_message(int s)
   } while (0)
 
   int m;
-#ifdef T_USE_SHARED_MEMORY
-  T_pos = 0;
-#endif
   if (GET(s, &m, sizeof(int)) != sizeof(int)) abort();
   switch (m) {
   case T_first: {
@@ -255,6 +237,7 @@ void get_message(int s)
       {printf("bad T_ENB_INPUT_SIGNAL, only 7680 samples allowed "
               "(received %d bytes = %d samples)\n", size, size/4);abort();}
     if (ul_plot) iq_plot_set(ul_plot, (short*)buf, 7680, subframe*7680, 0);
+    t_gui_set_input_signal(eNB, frame, subframe, antenna, size, buf);
     break;
   }
   case T_ENB_UL_CHANNEL_ESTIMATE: {
@@ -339,43 +322,8 @@ void get_message(int s)
   }
   default: printf("unkown message type %d\n", m); abort();
   }
-
-#ifdef T_USE_SHARED_MEMORY
-  T_cache[T_busylist_head].busy = 0;
-  T_busylist_head++;
-  T_busylist_head &= T_CACHE_SIZE - 1;
-#endif
 }
 
-#ifdef T_USE_SHARED_MEMORY
-
-void wait_message(void)
-{
-  while (T_cache[T_busylist_head].busy == 0) usleep(1000);
-}
-
-void init_shm(void)
-{
-  int i;
-  int s = shm_open(T_SHM_FILENAME, O_RDWR | O_CREAT /*| O_SYNC*/, 0666);
-  if (s == -1) { perror(T_SHM_FILENAME); abort(); }
-  if (ftruncate(s, T_CACHE_SIZE * sizeof(T_cache_t)))
-    { perror(T_SHM_FILENAME); abort(); }
-  T_cache = mmap(NULL, T_CACHE_SIZE * sizeof(T_cache_t),
-                 PROT_READ | PROT_WRITE, MAP_SHARED, s, 0);
-  if (T_cache == NULL)
-    { perror(T_SHM_FILENAME); abort(); }
-  close(s);
-
-  /* let's garbage the memory to catch some potential problems
-   * (think multiprocessor sync issues, barriers, etc.)
-   */
-  memset(T_cache, 0x55, T_CACHE_SIZE * sizeof(T_cache_t));
-  for (i = 0; i < T_CACHE_SIZE; i++) T_cache[i].busy = 0;
-}
-
-#endif /* T_USE_SHARED_MEMORY */
-
 void new_thread(void *(*f)(void *), void *data)
 {
   pthread_t t;
@@ -396,22 +344,22 @@ void new_thread(void *(*f)(void *), void *data)
 void usage(void)
 {
   printf(
-"common options:\n"
+"tracer - remote side\n"
+"options:\n"
 "    -d <database file>        this option is mandatory\n"
 "    -li                       print IDs in the database\n"
 "    -lg                       print GROUPs in the database\n"
 "    -dump                     dump the database\n"
 "    -x                        run with XFORMS (revisited)\n"
+"    -T                        run with T GUI\n"
 "    -on <GROUP or ID>         turn log ON for given GROUP or ID\n"
 "    -off <GROUP or ID>        turn log OFF for given GROUP or ID\n"
 "    -ON                       turn all logs ON\n"
 "    -OFF                      turn all logs OFF\n"
 "note: you may pass several -on/-off/-ON/-OFF, they will be processed in order\n"
 "      by default, all is off\n"
-"\n"
-"remote mode options: in this mode you run a local tracer and a remote one\n"
-"    -r <port>                 remote side (use given port)\n"
-"    -l <IP address> <port>    local side (forwards packets to remote IP:port)\n"
+"    -r <port>                 remote side: use given port (default %d)\n",
+  DEFAULT_REMOTE_PORT
   );
   exit(1);
 }
@@ -428,18 +376,12 @@ int main(int n, char **v)
   int do_list_groups = 0;
   int do_dump_database = 0;
   int do_xforms = 0;
+  int do_T_gui = 0;
   char **on_off_name;
   int *on_off_action;
   int on_off_n = 0;
   int is_on[T_NUMBER_OF_IDS];
-  int remote_local = 0;
-  int remote_remote = 0;
-  char *remote_ip = NULL;
-  int remote_port = -1;
-  int port = 2020;
-#ifdef T_USE_SHARED_MEMORY
-  void *f;
-#endif
+  int port = DEFAULT_REMOTE_PORT;
 
   memset(is_on, 0, sizeof(is_on));
 
@@ -454,6 +396,7 @@ int main(int n, char **v)
     if (!strcmp(v[i], "-lg")) { do_list_groups = 1; continue; }
     if (!strcmp(v[i], "-dump")) { do_dump_database = 1; continue; }
     if (!strcmp(v[i], "-x")) { do_xforms = 1; continue; }
+    if (!strcmp(v[i], "-T")) { do_T_gui = 1; continue; }
     if (!strcmp(v[i], "-on")) { if (i > n-2) usage();
       on_off_name[on_off_n]=v[++i]; on_off_action[on_off_n++]=1; continue; }
     if (!strcmp(v[i], "-off")) { if (i > n-2) usage();
@@ -462,45 +405,13 @@ int main(int n, char **v)
       { on_off_name[on_off_n]=NULL; on_off_action[on_off_n++]=1; continue; }
     if (!strcmp(v[i], "-OFF"))
       { on_off_name[on_off_n]=NULL; on_off_action[on_off_n++]=0; continue; }
-    if (!strcmp(v[i], "-r")) { if (i > n-2) usage(); remote_remote = 1;
+    if (!strcmp(v[i], "-r")) { if (i > n-2) usage();
       port = atoi(v[++i]); continue; }
-    if (!strcmp(v[i], "-l")) { if (i > n-3) usage(); remote_local = 1;
-      remote_ip = v[++i]; remote_port = atoi(v[++i]); continue; }
     printf("ERROR: unknown option %s\n", v[i]);
     usage();
   }
 
-#ifndef T_USE_SHARED_MEMORY
-  /* gcc shut up */
-  (void)remote_port;
-  (void)remote_ip;
-#endif
-
-#ifdef T_USE_SHARED_MEMORY
-  if (remote_remote) {
-    printf("ERROR: remote 'remote side' does not run with shared memory\n");
-    printf("recompile without T_USE_SHARED_MEMORY (edit Makefile)\n");
-    exit(1);
-  }
-#endif
-
-  if (remote_remote) {
-    /* TODO: setup 'secure' connection with remote part */
-  }
-
-#ifndef T_USE_SHARED_MEMORY
-  if (remote_local) {
-    printf("ERROR: remote 'local side' does not run without shared memory\n");
-    printf("recompile with T_USE_SHARED_MEMORY (edit Makefile)\n");
-    exit(1);
-  }
-#endif
-
-#ifdef T_USE_SHARED_MEMORY
-  if (remote_local) f = forwarder(remote_ip, remote_port);
-#endif
-
-  if (remote_local) goto no_database;
+  /* TODO: setup 'secure' connection with remote part */
 
   if (database_filename == NULL) {
     printf("ERROR: provide a database file (-d)\n");
@@ -517,7 +428,6 @@ int main(int n, char **v)
   for (i = 0; i < on_off_n; i++)
     on_off(database, on_off_name[i], is_on, on_off_action[i]);
 
-no_database:
   if (do_xforms) {
     ul_plot = make_plot(512, 100, "UL Input Signal", 1,
                         7680*10, PLOT_VS_TIME, BLUE);
@@ -533,19 +443,12 @@ no_database:
                            /* pucch 1 */
                            10240, PLOT_MINMAX, BLUE);
   }
+  if (do_T_gui) {
+    t_gui_start();
+  }
 
-#ifdef T_USE_SHARED_MEMORY
-  init_shm();
-#endif
   s = get_connection("127.0.0.1", port);
 
-  if (remote_local) {
-#ifdef T_USE_SHARED_MEMORY
-    forward_start_client(f, s);
-#endif
-    goto no_init_message;
-  }
-
   /* send the first message - activate selected traces */
   t = 0;
   if (write(s, &t, 1) != 1) abort();
@@ -556,26 +459,8 @@ no_database:
     if (is_on[l])
       if (write(s, &l, sizeof(int)) != sizeof(int)) abort();
 
-no_init_message:
-
   /* read messages */
   while (1) {
-#ifdef T_USE_SHARED_MEMORY
-    wait_message();
-    __sync_synchronize();
-#endif
-
-#ifdef T_USE_SHARED_MEMORY
-    if (remote_local) {
-      forward(f, T_cache[T_busylist_head].buffer,
-              T_cache[T_busylist_head].length);
-      T_cache[T_busylist_head].busy = 0;
-      T_busylist_head++;
-      T_busylist_head &= T_CACHE_SIZE - 1;
-      continue;
-    }
-#endif
-
     get_message(s);
   }
   return 0;