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authorDrew DeVault <sir@cmpwn.com>2017-11-18 11:22:02 -0500
committerDrew DeVault <sir@cmpwn.com>2017-11-18 11:22:02 -0500
commit733993a651c71f7e2198d505960d6bbd31e0e107 (patch)
treee51732c5872b624e73355f9e5b3f762101f3cd0d /sway/old/commands/exec_always.c
parent0c8491f7d0c735299a25f0ab929f5d1e0866b929 (diff)
Move everything to sway/old/
Diffstat (limited to 'sway/old/commands/exec_always.c')
-rw-r--r--sway/old/commands/exec_always.c85
1 files changed, 85 insertions, 0 deletions
diff --git a/sway/old/commands/exec_always.c b/sway/old/commands/exec_always.c
new file mode 100644
index 00000000..ab2d8622
--- /dev/null
+++ b/sway/old/commands/exec_always.c
@@ -0,0 +1,85 @@
+#define _XOPEN_SOURCE 500
+#include <string.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "sway/commands.h"
+#include "sway/config.h"
+#include "log.h"
+#include "stringop.h"
+
+struct cmd_results *cmd_exec_always(int argc, char **argv) {
+ struct cmd_results *error = NULL;
+ if (!config->active) return cmd_results_new(CMD_DEFER, NULL, NULL);
+ if ((error = checkarg(argc, "exec_always", EXPECTED_MORE_THAN, 0))) {
+ return error;
+ }
+
+ char *tmp = NULL;
+ if (strcmp((char*)*argv, "--no-startup-id") == 0) {
+ sway_log(L_INFO, "exec switch '--no-startup-id' not supported, ignored.");
+ if ((error = checkarg(argc - 1, "exec_always", EXPECTED_MORE_THAN, 0))) {
+ return error;
+ }
+
+ tmp = join_args(argv + 1, argc - 1);
+ } else {
+ tmp = join_args(argv, argc);
+ }
+
+ // Put argument into cmd array
+ char cmd[4096];
+ strncpy(cmd, tmp, sizeof(cmd));
+ cmd[sizeof(cmd) - 1] = 0;
+ free(tmp);
+ sway_log(L_DEBUG, "Executing %s", cmd);
+
+ int fd[2];
+ if (pipe(fd) != 0) {
+ sway_log(L_ERROR, "Unable to create pipe for fork");
+ }
+
+ pid_t pid;
+ pid_t *child = malloc(sizeof(pid_t)); // malloc'd so that Linux can avoid copying the process space
+ if (!child) {
+ return cmd_results_new(CMD_FAILURE, "exec_always", "Unable to allocate child pid");
+ }
+ // Fork process
+ if ((pid = fork()) == 0) {
+ // Fork child process again
+ setsid();
+ if ((*child = fork()) == 0) {
+ execl("/bin/sh", "/bin/sh", "-c", cmd, (void *)NULL);
+ /* Not reached */
+ }
+ close(fd[0]);
+ ssize_t s = 0;
+ while ((size_t)s < sizeof(pid_t)) {
+ s += write(fd[1], ((uint8_t *)child) + s, sizeof(pid_t) - s);
+ }
+ close(fd[1]);
+ _exit(0); // Close child process
+ } else if (pid < 0) {
+ free(child);
+ return cmd_results_new(CMD_FAILURE, "exec_always", "fork() failed");
+ }
+ close(fd[1]); // close write
+ ssize_t s = 0;
+ while ((size_t)s < sizeof(pid_t)) {
+ s += read(fd[0], ((uint8_t *)child) + s, sizeof(pid_t) - s);
+ }
+ close(fd[0]);
+ // cleanup child process
+ wait(0);
+ swayc_t *ws = swayc_active_workspace();
+ if (*child > 0 && ws) {
+ sway_log(L_DEBUG, "Child process created with pid %d for workspace %s", *child, ws->name);
+ struct pid_workspace *pw = malloc(sizeof(struct pid_workspace));
+ pw->pid = child;
+ pw->workspace = strdup(ws->name);
+ pid_workspace_add(pw);
+ } else {
+ free(child);
+ }
+
+ return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}