--- /dev/null
+#include <glib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "kernel/menu.h"
+#include "kernel/event.h"
+
+static char *PLUGIN_NAME = "fifo_menu";
+
+typedef struct Fifo_Menu_Data{
+ char *fifo;
+ char *buf; /* buffer to hold partially read menu */
+ unsigned long buflen; /* how many bytes are in the buffer */
+ int fd; /* file descriptor to read menu from */
+ event_fd_handler *handler;
+} Fifo_Menu_Data;
+
+#define FIFO_MENU(m) ((Menu *)m)
+#define FIFO_MENU_DATA(m) ((Fifo_Menu_Data *)((Menu *)m)->plugin_data)
+
+
+void fifo_menu_clean_up(Menu *m) {
+ if (FIFO_MENU_DATA(m)->buf != NULL) {
+ g_free(FIFO_MENU_DATA(m)->buf);
+ FIFO_MENU_DATA(m)->buf = NULL;
+ FIFO_MENU_DATA(m)->buflen = 0;
+ }
+
+ if (FIFO_MENU_DATA(m)->fd != -1) {
+ close(FIFO_MENU_DATA(m)->fd);
+ FIFO_MENU_DATA(m)->fd = -1;
+ }
+}
+
+void plugin_setup_config() { }
+void plugin_startup()
+{ }
+void plugin_shutdown() { }
+
+void fifo_menu_handler(int fd, Menu *menu) {
+ char *tmpbuf = NULL;
+ unsigned long num_read;
+#ifdef DEBUG
+ /* because gdb is dumb */
+ Fifo_Menu_Data *d = FIFO_MENU_DATA(menu);
+#endif
+
+ /* if the menu is shown this will go into busy loop :(
+ fix me*/
+ if (!menu->shown) {
+ unsigned long num_realloc;
+ /* if we have less than a quarter BUFSIZ left, allocate more */
+ num_realloc = (BUFSIZ - (FIFO_MENU_DATA(menu)->buflen % BUFSIZ) <
+ BUFSIZ >> 2) ?
+ 0 : BUFSIZ;
+
+ tmpbuf = g_try_realloc(FIFO_MENU_DATA(menu)->buf,
+ FIFO_MENU_DATA(menu)->buflen + num_realloc);
+
+ if (tmpbuf == NULL) {
+ g_warning("Unable to allocate memory for read()");
+ return;
+ }
+
+ FIFO_MENU_DATA(menu)->buf = tmpbuf;
+
+ num_read = read(fd,
+ FIFO_MENU_DATA(menu)->buf + FIFO_MENU_DATA(menu)->buflen,
+ num_realloc);
+
+ if (num_read == 0) { /* eof */
+ unsigned long count = 0;
+ char *found = NULL;
+
+ menu->invalid = TRUE;
+ menu_clear(menu);
+
+ /* TEMP: list them */
+ while (NULL !=
+ (found = strchr(&FIFO_MENU_DATA(menu)->buf[count], '\n'))) {
+ FIFO_MENU_DATA(menu)->buf
+ [found - FIFO_MENU_DATA(menu)->buf] = '\0';
+ menu_add_entry(menu,
+ menu_entry_new_separator
+ (&FIFO_MENU_DATA(menu)->buf[count]));
+ count = found - FIFO_MENU_DATA(menu)->buf + 1;
+ }
+
+ FIFO_MENU_DATA(menu)->buf[FIFO_MENU_DATA(menu)->buflen] = '\0';
+ fifo_menu_clean_up(menu);
+
+ event_remove_fd(FIFO_MENU_DATA(menu)->handler->fd);
+
+ if ((FIFO_MENU_DATA(menu)->fd =
+ open(FIFO_MENU_DATA(menu)->fifo, O_NONBLOCK | O_RDONLY)) == -1) {
+ g_warning("Can't reopen FIFO");
+ fifo_menu_clean_up(menu);
+ return;
+ }
+
+ FIFO_MENU_DATA(menu)->handler->fd = FIFO_MENU_DATA(menu)->fd;
+
+ event_add_fd_handler(FIFO_MENU_DATA(menu)->handler);
+ } else if (num_read > 0) {
+ FIFO_MENU_DATA(menu)->buflen += num_read;
+ FIFO_MENU_DATA(menu)->buf[FIFO_MENU_DATA(menu)->buflen] = '\0';
+ }
+ }
+}
+
+void plugin_destroy (Menu *m)
+{
+ fifo_menu_clean_up(m);
+ if (FIFO_MENU_DATA(m)->handler != NULL) {
+ g_free(FIFO_MENU_DATA(m)->handler);
+ FIFO_MENU_DATA(m)->handler = NULL;
+ }
+
+ if (FIFO_MENU_DATA(m)->fifo != NULL) {
+ g_free(FIFO_MENU_DATA(m)->fifo);
+ FIFO_MENU_DATA(m)->fifo = NULL;
+ }
+
+ g_free(m->plugin_data);
+
+ menu_free(m->name);
+}
+
+void *plugin_create() /* TODO: need config */
+{
+ char *fifo;
+ char *dir;
+ event_fd_handler *h;
+
+ Fifo_Menu_Data *d = g_new(Fifo_Menu_Data, 1);
+ Menu *m = menu_new("", PLUGIN_NAME, NULL);
+
+ d->fd = -1;
+ d->buf = NULL;
+ d->buflen = 0;
+ d->handler = NULL;
+
+ m->plugin = PLUGIN_NAME;
+
+ d->fd = -1;
+
+ m->plugin_data = (void *)d;
+
+ dir = g_build_filename(g_get_home_dir(), ".openbox", PLUGIN_NAME, NULL);
+
+ if (mkdir(dir, S_IRWXU | S_IRWXG | S_IRWXO) == -1 && errno != EEXIST) {
+/* technically, if ~/.openbox/fifo_menu exists and isn't a directory
+ this will fail, but we don't care because mkfifo will fail and warn
+ anyway */
+ g_warning("Can't create %s: %s", dir, strerror(errno));
+ g_free(dir);
+ plugin_destroy(m);
+ return NULL;
+ }
+
+ fifo = g_build_filename(g_get_home_dir(), ".openbox", PLUGIN_NAME,
+ m->name, NULL);
+ if (mkfifo(fifo, S_IRUSR | S_IWUSR |
+ S_IRGRP | S_IWGRP | /* let umask do its thing */
+ S_IROTH | S_IWOTH) == -1 && errno != EEXIST) {
+ g_warning("Can't create FIFO %s: %s", fifo, strerror(errno));
+ g_free(fifo);
+ g_free(d);
+ menu_free(m->name);
+ return NULL;
+ }
+
+/* open in non-blocking mode so we don't wait for a process to open FIFO
+ for writing */
+ if ((d->fd = open(fifo, O_NONBLOCK | O_RDONLY)) == -1) {
+ g_warning("Can't open FIFO %s: %s", fifo, strerror(errno));
+ g_free(fifo);
+ g_free(d);
+ menu_free(m->name);
+ return NULL;
+ }
+
+ d->fifo = fifo;
+
+ h = g_new(event_fd_handler, 1);
+
+ if (h == NULL) {
+ g_warning("Out of memory");
+ close(d->fd);
+ g_free(fifo);
+ g_free(d);
+ menu_free(m->name);
+ return NULL;
+ }
+
+ h->fd = d->fd;
+ h->data = m;
+ h->handler = fifo_menu_handler;
+ d->handler = h;
+
+ event_add_fd_handler(h);
+
+ g_free(dir);
+ return (void *)m;
+}
projects / chaz / openbox / blobdiff