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lib + pingpong avec vérification de la présence des pipes

more_to_read
Philippe PITTOLI 2016-05-31 16:14:50 +02:00
parent 6b2ad54284
commit 889adc499d
2 changed files with 28 additions and 20 deletions
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40
lib/communication.c
View File

@ -300,6 +300,10 @@ int process_open_in (struct process *proc)
printf ("opening in %s\n", fifopathin);
proc->in = fopen (fifopathin, "rb");
if (proc->in == NULL) {
fprintf (stderr, "\033[31mnot opened\033[00m\n");
return -1;
}
printf ("opened : %d\n", proc->in);
return 0;
@ -313,6 +317,10 @@ int service_proc_open_in (struct process *proc)
printf ("opening in %s\n", fifopathin);
proc->in = fopen (fifopathin, "wb");
if (proc->in == NULL) {
fprintf (stderr, "\033[31mnot opened\033[00m\n");
return -1;
}
printf ("opened : %d\n", proc->in);
return 0;
@ -326,6 +334,10 @@ int service_proc_open_out (struct process *proc)
printf ("opening out %s\n", fifopathout);
proc->out = fopen (fifopathout, "rb");
if (proc->out == NULL) {
fprintf (stderr, "\033[31mnot opened\033[00m\n");
return -1;
}
printf ("opened\n");
return 0;
@ -339,6 +351,10 @@ int process_open_out (struct process *proc)
printf ("opening out %s\n", fifopathout);
proc->out = fopen (fifopathout, "wb");
if (proc->out == NULL) {
fprintf (stderr, "\033[31mnot opened\033[00m\n");
return -1;
}
printf ("opened\n");
return 0;
@ -371,16 +387,14 @@ int process_read (struct process *proc, void * buf, size_t * msize)
{
int ret;
if ((ret = process_open_in (proc))) {
fprintf(stdout, "error process_open_in %d\n", ret);
exit (1);
return 1;
}
*msize = fread (buf, 1, *msize, proc->in); // FIXME check errors
// printf ("DEBUG read, size %ld : %s\n", *msize, buf);
if ((ret = process_close_in (proc))) {
fprintf(stdout, "error process_close_in %d\n", ret);
exit (1);
return 1;
}
return 0;
@ -390,15 +404,13 @@ int process_write (struct process *proc, void * buf, size_t msize)
{
int ret;
if ((ret = process_open_out (proc))) {
fprintf(stdout, "error process_create %d\n", ret);
exit (1);
return 1;
}
fwrite (buf, 1, msize, proc->out); // FIXME check errors
if ((ret = process_close_out (proc))) {
fprintf(stdout, "error process_close_out %d\n", ret);
exit (1);
return 1;
}
return 0;
}
@ -407,16 +419,14 @@ int service_read (struct process *proc, void * buf, size_t * msize)
{
int ret;
if ((ret = service_proc_open_out (proc))) {
fprintf(stdout, "error process_open_out %d\n", ret);
exit (1);
return 1;
}
*msize = fread (buf, 1, *msize, proc->out); // FIXME check errors
// printf ("DEBUG read, size %ld : %s\n", *msize, buf);
if ((ret = process_close_out (proc))) {
fprintf(stdout, "error process_close_out %d\n", ret);
exit (1);
return 1;
}
return 0;
@ -426,15 +436,13 @@ int service_write (struct process *proc, void * buf, size_t msize)
{
int ret;
if ((ret = service_proc_open_in (proc))) {
fprintf(stdout, "error process_open_in %d\n", ret);
exit (1);
return 1;
}
fwrite (buf, 1, msize, proc->in); // FIXME check errors
if ((ret = process_close_in (proc))) {
fprintf(stdout, "error process_close_in %d\n", ret);
exit (1);
return 1;
}
return 0;
}

8
pingpong/pingpong.c
View File

@ -19,8 +19,8 @@ void main_loop (const char *spath)
// -1 : error, 0 = no new process, 1 = new process
ret = service_get_new_process (&proc, spath);
if (ret == -1) {
fprintf (stderr, "Error service_get_new_process\n");
exit (1);
fprintf (stderr, "error service_get_new_process\n");
continue;
} else if (ret == 0) { // that should not happen
continue;
}
@ -37,7 +37,7 @@ void main_loop (const char *spath)
// printf ("before read\n");
if ((ret = service_read (&proc, &buf, &msize))) {
fprintf(stdout, "error service_read %d\n", ret);
exit (1);
continue;
}
// printf ("after read\n");
printf ("read, size %ld : %s\n", msize, buf);
@ -45,7 +45,7 @@ void main_loop (const char *spath)
// printf ("before proc write\n");
if ((ret = service_write (&proc, &buf, msize))) {
fprintf(stdout, "error service_write %d\n", ret);
exit (1);
continue;
}
// printf ("after proc write\n");
printf ("\033[32mStill \033[31m%d\033[32m applications to serve\n",cnt);