85 lines
2.1 KiB
C
85 lines
2.1 KiB
C
#include "lib/communication.h"
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/*
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* main loop
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*
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* opens the application pipes,
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* reads then writes the same message,
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* then closes the pipes
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*/
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void main_loop (const char *spath)
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{
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int ret;
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int sfifo = open (spath, S_IRUSR); // opens the service named pipe
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struct process *proc;
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int nproc = 0;
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do {
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service_get_new_processes (&proc, &nproc, sfifo);
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printf ("nb proc : %d\n", nproc);
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// for each process : open, read, write, close
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for (int i = 0 ; i < nproc ; i++) {
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process_print (&proc[i]);
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// about the message
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size_t msize = BUFSIZ;
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char buf[BUFSIZ];
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if ((ret = process_read (&proc[i], &buf, &msize))) {
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fprintf(stdout, "error process_read %d\n", ret);
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exit (1);
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}
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printf ("read, size %ld : %s\n", msize, buf);
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if ((ret = process_write (&proc[i], &buf, msize))) {
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fprintf(stdout, "error process_read %d\n", ret);
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exit (1);
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}
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}
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service_free_processes (&proc, nproc);
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} while (0); // it's a test, we only do it once
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close (sfifo); // closes the service named pipe
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}
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/*
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* service test
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*
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* 1. creates the named pipe /tmp/<service>, then listens
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* 2. opens the named pipes in & out
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* 3. talks with the (test) program
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* 4. closes the test program named pipes
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* 5. removes the named pipe /tmp/<service>
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*/
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int main(int argc, char * argv[])
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{
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// gets the service path, such as /tmp/<service>
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char spath[PATH_MAX];
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service_path (spath, "windows");
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// creates the service named pipe, that listens to client applications
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int ret;
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if ((ret = service_create (spath))) {
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fprintf(stdout, "error service_create %d\n", ret);
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exit (1);
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}
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// the service will loop until the end of time, a specific message, a signal
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main_loop (spath);
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// the application will shut down, and remove the service named pipe
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if ((ret = service_close (spath))) {
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fprintf(stdout, "error service_close %d\n", ret);
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exit (1);
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}
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return EXIT_SUCCESS;
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}
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