92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
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/*
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* vim:ts=4:sw=4:expandtab
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*
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* i3 - an improved dynamic tiling window manager
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*
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* © 2009-2011 Michael Stapelberg and contributors
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*
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* See file LICENSE for license information.
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*
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* startup.c: Startup notification code
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*
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*/
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#include <sys/types.h>
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#include <sys/wait.h>
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#define SN_API_NOT_YET_FROZEN 1
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#include <libsn/sn-launcher.h>
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#include "all.h"
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/*
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* Starts the given application by passing it through a shell. We use double fork
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* to avoid zombie processes. As the started application’s parent exits (immediately),
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* the application is reparented to init (process-id 1), which correctly handles
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* childs, so we don’t have to do it :-).
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*
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* The shell is determined by looking for the SHELL environment variable. If it
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* does not exist, /bin/sh is used.
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*
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*/
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void start_application(const char *command) {
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/* Create a startup notification context to monitor the progress of this
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* startup. */
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SnLauncherContext *context;
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context = sn_launcher_context_new(sndisplay, conn_screen);
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sn_launcher_context_set_name(context, "i3");
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sn_launcher_context_set_description(context, "exec command in i3");
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/* Chop off everything starting from the first space (if there are any
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* spaces in the command), since we don’t want the parameters. */
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char *first_word = sstrdup(command);
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char *space = strchr(first_word, ' ');
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if (space)
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*space = '\0';
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sn_launcher_context_initiate(context, "i3", first_word, last_timestamp);
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free(first_word);
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LOG("startup id = %s\n", sn_launcher_context_get_startup_id(context));
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LOG("executing: %s\n", command);
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if (fork() == 0) {
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/* Child process */
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setsid();
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if (fork() == 0) {
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/* Setup the environment variable(s) */
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sn_launcher_context_setup_child_process(context);
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/* Stores the path of the shell */
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static const char *shell = NULL;
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if (shell == NULL)
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if ((shell = getenv("SHELL")) == NULL)
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shell = "/bin/sh";
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/* This is the child */
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execl(shell, shell, "-c", command, (void*)NULL);
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/* not reached */
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}
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exit(0);
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}
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wait(0);
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}
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/*
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* Called by libstartup-notification when something happens
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*
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*/
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void startup_monitor_event(SnMonitorEvent *event, void *userdata) {
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SnStartupSequence *sequence;
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DLOG("something happened\n");
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sequence = sn_monitor_event_get_startup_sequence(event);
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switch (sn_monitor_event_get_type(event)) {
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case SN_MONITOR_EVENT_COMPLETED:
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DLOG("startup sequence %s completed\n", sn_startup_sequence_get_id(sequence));
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break;
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default:
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/* ignore */
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break;
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}
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}
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