#include <errno.h>#include <sys/types.h>#include <sys/wait.h>#include <unistd.h>
Include dependency graph for runbg.c:
Functions | |
| int | runbg (char *const cmd[], int delay) |
| Run command in the background. More... | |
Detailed Description
- Date
- 2023
- Copyright
- ISC License
Function Documentation
◆ runbg()
| int runbg | ( | char *const | cmd[], |
| int | delay | ||
| ) |
Run command in the background.
- Parameters
-
cmd NULL terminated list of command and optional arguments delay Microseconds after fork() to wait before calling cmd
This function forks to run the given command cmd in the background. To ensure there are no lingering zombies the function actuall forks twice, and also calls setsid(), before it calls usleep() with the delay argument. The command cmd is handed over to execvp().
Since it runs in the background it is not possible to get the return code of the command.
- Returns
- on successful (first) fork(), this function returns POSIX OK(0), otherwise -1 and errno is set to indicate the error.
