Back to index

lightning-sunbird  0.9+nobinonly
Defines | Functions
pipepong2.c File Reference
#include "prerror.h"
#include "prio.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

Go to the source code of this file.

Defines

#define NUM_ITERATIONS   10

Functions

int main ()
 main()

Define Documentation

Definition at line 59 of file pipepong2.c.


Function Documentation

int main ( void  )

main()

Definition at line 61 of file pipepong2.c.

{
    PRFileDesc *pipe_read, *pipe_write;
    PRStatus status;
    char buf[1024];
    PRInt32 nBytes;
    int idx;

    pipe_read = PR_GetInheritedFD("PIPE_READ");
    if (pipe_read == NULL) {
        fprintf(stderr, "PR_GetInheritedFD failed\n");
        exit(1);
    }
    status = PR_SetFDInheritable(pipe_read, PR_FALSE);
    if (status == PR_FAILURE) {
        fprintf(stderr, "PR_SetFDInheritable failed\n");
        exit(1);
    }
    pipe_write = PR_GetInheritedFD("PIPE_WRITE");
    if (pipe_write == NULL) {
        fprintf(stderr, "PR_GetInheritedFD failed\n");
        exit(1);
    }
    status = PR_SetFDInheritable(pipe_write, PR_FALSE);
    if (status == PR_FAILURE) {
        fprintf(stderr, "PR_SetFDInheritable failed\n");
        exit(1);
    }

    for (idx = 0; idx < NUM_ITERATIONS; idx++) {
        memset(buf, 0, sizeof(buf));
        nBytes = PR_Read(pipe_read, buf, sizeof(buf));
        if (nBytes == -1) {
            fprintf(stderr, "PR_Read failed: (%d, %d)\n",
                    PR_GetError(), PR_GetOSError());
            exit(1);
        }
        printf("pong process: received \"%s\"\n", buf);
        if (nBytes != 5) {
            fprintf(stderr, "pong process: expected 5 bytes but got %d bytes\n",
                    nBytes);
            exit(1);
        }
        if (strcmp(buf, "ping") != 0) {
            fprintf(stderr, "pong process: expected \"ping\" but got \"%s\"\n",
                    buf);
            exit(1);
        }

        strcpy(buf, "pong");
        printf("pong process: sending \"%s\"\n", buf);
        nBytes = PR_Write(pipe_write, buf, 5);
        if (nBytes == -1) {
            fprintf(stderr, "PR_Write failed\n");
            exit(1);
        }
    }

    status = PR_Close(pipe_read);
    if (status == PR_FAILURE) {
        fprintf(stderr, "PR_Close failed\n");
        exit(1);
    }
    status = PR_Close(pipe_write);
    if (status == PR_FAILURE) {
        fprintf(stderr, "PR_Close failed\n");
        exit(1);
    }
    return 0;
}

Here is the call graph for this function: