gnome-exec

Name

gnome-exec -- Execution of programs from within GNOME applications.

Synopsis


#include <libgnome/libgnome.h>


int         gnome_execute_async             (const char *dir,
                                             int argc,
                                             char *const argv[]);
int         gnome_execute_async_fds         (const char *dir,
                                             int argc,
                                             char *const argv[],
                                             gboolean close_fds);
int         gnome_execute_async_with_env    (const char *dir,
                                             int argc,
                                             char *const argv[],
                                             int envc,
                                             char *const envv[]);
int         gnome_execute_async_with_env_fds
                                            (const char *dir,
                                             int argc,
                                             char *const argv[],
                                             int envc,
                                             char *const envv[],
                                             gboolean close_fds);
int         gnome_execute_shell             (const char *dir,
                                             const char *commandline);
int         gnome_execute_shell_fds         (const char *dir,
                                             const char *commandline,
                                             gboolean close_fds);
void        gnome_prepend_terminal_to_vector
                                            (int *argc,
                                             char ***argv);
int         gnome_execute_terminal_shell    (const char *dir,
                                             const char *commandline);
int         gnome_execute_terminal_shell_fds
                                            (const char *dir,
                                             const char *commandline,
                                             gboolean close_fds);

Description

The gnome-execute family of functions are provided to simplify execution of programs from withing GNOME applications. These routines are required to avoid passing opened file descriptors to a child process (like the X11 sockets and CORBA sockets). They will also make sure to terminate properly.

The range of possibilities goes from the most simple use to the most specialized ones.

Details

gnome_execute_async ()

int         gnome_execute_async             (const char *dir,
                                             int argc,
                                             char *const argv[]);

Like gnome_execute_async_with_env(), but doesn't add anything to child's environment.


gnome_execute_async_fds ()

int         gnome_execute_async_fds         (const char *dir,
                                             int argc,
                                             char *const argv[],
                                             gboolean close_fds);

Like gnome_execute_async_with_env_fds(), but doesn't add anything to child's environment.


gnome_execute_async_with_env ()

int         gnome_execute_async_with_env    (const char *dir,
                                             int argc,
                                             char *const argv[],
                                             int envc,
                                             char *const envv[]);

This function forks and executes some program in the background. On error, returns -1; in this case, errno should hold a useful value. Searches the path to find the child. Environment settings in envv are added to the existing environment -- they do not completely replace it. This function closes all fds besides 0, 1, and 2 for the child


gnome_execute_async_with_env_fds ()

int         gnome_execute_async_with_env_fds
                                            (const char *dir,
                                             int argc,
                                             char *const argv[],
                                             int envc,
                                             char *const envv[],
                                             gboolean close_fds);

Like gnome_execute_async_with_env() but has a flag to decide whether or not to close fd's


gnome_execute_shell ()

int         gnome_execute_shell             (const char *dir,
                                             const char *commandline);

Like gnome_execute_async_with_env(), but uses the user's shell to run the desired program. Note that the pid of the shell is returned, not the pid of the user's program.


gnome_execute_shell_fds ()

int         gnome_execute_shell_fds         (const char *dir,
                                             const char *commandline,
                                             gboolean close_fds);

Like gnome_execute_async_with_env_fds(), but uses the user's shell to run the desired program. Note that the pid of the shell is returned, not the pid of the user's program.


gnome_prepend_terminal_to_vector ()

void        gnome_prepend_terminal_to_vector
                                            (int *argc,
                                             char ***argv);

Prepends a terminal (either the one configured as default in the user's GNOME setup, or one of the common xterm emulators) to the passed in vector, modifying it in the process. The vector should be allocated with g_malloc, as this will g_free the original vector. Also all elements must have been allocated separately. That is the standard glib/GNOME way of doing vectors however. If the integer that argc points to is negative, the size will first be computed. Also note that passing in pointers to a vector that is empty, will just create a new vector for you.


gnome_execute_terminal_shell ()

int         gnome_execute_terminal_shell    (const char *dir,
                                             const char *commandline);

Like gnome_execute_async, except that it runs the terminal as well. Note that the pid of the terminal is returned, not the pid of the user's program. If commandline is NULL, just the shell is run.


gnome_execute_terminal_shell_fds ()

int         gnome_execute_terminal_shell_fds
                                            (const char *dir,
                                             const char *commandline,
                                             gboolean close_fds);

Like gnome_execute_shell_fds(), except that it runs the terminal as well. Note that the pid of the terminal is returned, not the pid of the user's program. If commandline is NULL, just the shell is run.