/* More correct and illustrative variant */
#include <glib.h>
void
setup_first (gpointer data)
{
int *p = (int *) data;
dup2 (p[1], 1);
close (p[0]);
}
void
setup_second (gpointer data)
{
int *p = (int *) data;
dup2 (p[0], 0);
close (p[1]);
}
int
main ()
{
char *argv1[] = { "/bin/ls", NULL };
char *argv2[] = { "/usr/bin/wc", "-l", NULL };
GError *err = NULL;
gint p[2];
pipe (p);
g_spawn_async_with_pipes (NULL, argv1, NULL,
G_SPAWN_LEAVE_DESCRIPTORS_OPEN,
setup_first, p,
NULL, NULL, NULL, NULL, &err);
g_spawn_async_with_pipes (NULL, argv2, NULL,
G_SPAWN_LEAVE_DESCRIPTORS_OPEN,
setup_second, p, NULL,
NULL, NULL, NULL, &err);
g_assert (err == NULL);
sleep (1);
close (p[0]);
close (p[1]);
return 0;
}
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