jProcessUtil_UNIX.cpp File Reference

#include "jProcessUtil.h"
#include "JThisProcess.h"
#include "JProcessError.h"
#include "JStdError.h"
#include "JString.h"
#include "jErrno.h"
#include "jStreamUtil.h"
#include "jFileUtil.h"
#include <sys/resource.h>
#include "jAssert.h"

Include dependency graph for jProcessUtil_UNIX.cpp:

Functions
JError	JRunProgram (const JString &cmd, JString *errOutput)
JError	JSetProcessPriority (const pid_t pid, const int priority)
JError	JSendSignalToGroup (const pid_t pgid, const int signal)
JError	JGetPGID (const pid_t pid, pid_t *pgid)

Function Documentation

JGetPGID()

JError JGetPGID	(	const pid_t	pid,
		pid_t *	pgid
	)

On FreeBSD, getpgid() isn't implemented because POSIX decided that it wasn't necessary since shells don't need it! Morons!

So we use the proc file system's 'status' file, which has the format

name pid ppid pgid ...

FreeBSD implementation written by Ivan Pascal pasca.nosp@m.l@in.nosp@m.fo.ts.nosp@m.u.ru

JRunProgram()

JError JRunProgram	(	const JString &	cmd,
		JString *	errOutput
	)

This convenience function runs the specified command and blocks until it finishes. If the program prints anything to stderr, *errOutput contains the text.

If you don't want to block, use JSimpleProcess.

JSendSignalToGroup()

JError JSendSignalToGroup	(	const pid_t	pgid,
		const int	signal
	)

JSetProcessPriority()

JError JSetProcessPriority	(	const pid_t	pid,
		const int	priority
	)