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authortpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2011-08-14 23:26:08 +0000
committertpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2011-08-14 23:26:08 +0000
commitf5c73c7a6728f2e2a7b7739c883a693ecfa7e027 (patch)
treecd44993ad70d4a0ca98146f564f5fc84d381b7e4 /kwin/kompmgr/kompmgr.c
parent5df7872c532d19e04b73cb20af2e2d88c13f7400 (diff)
downloadtdebase-f5c73c7a6728f2e2a7b7739c883a693ecfa7e027.tar.gz
tdebase-f5c73c7a6728f2e2a7b7739c883a693ecfa7e027.zip
Fix kompmgr configuration dialog
All main settings now work and apply immediately There is also now no flicker during settings application! git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdebase@1247196 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'kwin/kompmgr/kompmgr.c')
-rw-r--r--kwin/kompmgr/kompmgr.c99
1 files changed, 60 insertions, 39 deletions
diff --git a/kwin/kompmgr/kompmgr.c b/kwin/kompmgr/kompmgr.c
index ceea0ac30..910622d73 100644
--- a/kwin/kompmgr/kompmgr.c
+++ b/kwin/kompmgr/kompmgr.c
@@ -34,8 +34,10 @@
* CHANGELOG:
* http://patchwork.freedesktop.org/patch/1049/ [Add default background color option] 08/11/2011
* http://patchwork.freedesktop.org/patch/1052/ [Prevent flicker on root pixmap change] 08/11/2011
- * Added SIGUSER1 handler to change process UID [Prevent flicker on login] 08/12/2011
+ * Added SIGUSR1 handler to change process UID [Prevent flicker on login] 08/12/2011
* Added ability to write PID of process to home directory 08/14/2011
+ * Added SIGUSR2 handler to reload settings [Prevent flicker on settings change] 08/14/2011
+ * Added SIGTERM handler to clean up stale PID files on exit 08/14/2011
*
* TODO:
* http://patchwork.freedesktop.org/patch/1053/ [Fix window mapping with re-used window ids]
@@ -76,7 +78,7 @@ check baghira.sf.net for more infos
#define _LEFTWIDTH_(x) (x & 0xff)
/* #define USE_ENV_HOME 1 */
-/* #define WRITE_PID_FILE 1 */
+#define WRITE_PID_FILE 1
#ifndef USE_ENV_HOME
#include <pwd.h>
@@ -297,7 +299,7 @@ void write_pid_file(pid_t pid)
home = getenv("HOME");
#endif
const char *filename;
- const char *configfile = "/.kompmgr.pid";
+ const char *configfile = "/.kompmgr.pid";
int n = strlen(home)+strlen(configfile)+1;
filename = (char*)malloc(n*sizeof(char));
memset(filename,0,n);
@@ -311,8 +313,10 @@ void write_pid_file(pid_t pid)
char buffer[255];
sprintf(buffer, "%d", pid);
pFile = fopen(filename, "w");
- fwrite(buffer,1,strlen(buffer), pFile);
- fclose(pFile);
+ if (pFile) {
+ fwrite(buffer,1,strlen(buffer), pFile);
+ fclose(pFile);
+ }
free(filename);
filename = NULL;
@@ -353,46 +357,59 @@ void delete_pid_file()
void handle_siguser (int sig)
{
- char newuid[1024];
+ int uidnum;
+ if (sig == SIGTERM) {
+ delete_pid_file();
+ exit(0);
+ return;
+ }
+ if (sig == SIGUSR1) {
+ char newuid[1024];
#ifndef NDEBUG
- printf("Enter the new user ID:\n\r"); fflush(stdout);
+ printf("Enter the new user ID:\n\r"); fflush(stdout);
#endif
- char *eof;
- newuid[0] = '\0';
- newuid[sizeof(newuid)-1] = '\0';
- eof = fgets(newuid, sizeof(newuid), stdin);
- int uidnum = atoi(newuid);
+ char *eof;
+ newuid[0] = '\0';
+ newuid[sizeof(newuid)-1] = '\0';
+ eof = fgets(newuid, sizeof(newuid), stdin);
+ uidnum = atoi(newuid);
#ifndef NDEBUG
- printf("Setting kompmgr process uid to %d...\n\r", uidnum); fflush(stdout);
+ printf("Setting kompmgr process uid to %d...\n\r", uidnum); fflush(stdout);
#endif
- delete_pid_file();
- setuid(uidnum);
- write_pid_file(getpid());
+ delete_pid_file();
+ setuid(uidnum);
+ write_pid_file(getpid());
+ }
+ else {
+ uidnum = getuid();
+ }
+ if ((sig == SIGUSR1) || (sig == SIGUSR2)) {
#ifdef USE_ENV_HOME
- const char *home = getenv("HOME");
+ const char *home = getenv("HOME");
#else
- const char *home;
- struct passwd *p;
- p = getpwuid(uidnum);
- if (p)
- home = p->pw_dir;
- else
- home = getenv("HOME");
+ const char *home;
+ struct passwd *p;
+ p = getpwuid(uidnum);
+ if (p)
+ home = p->pw_dir;
+ else
+ home = getenv("HOME");
#endif
- const char *filename;
- const char *configfile = "/.xcompmgrrc";
- int n = strlen(home)+strlen(configfile)+1;
- filename = (char*)malloc(n*sizeof(char));
- memset(filename,0,n);
- strcat(filename, home);
- strcat(filename, configfile);
-
- loadConfig(filename); /* reload the configuration file */
-
- free(filename);
- filename = NULL;
+ const char *filename;
+ const char *configfile = "/.xcompmgrrc";
+ int n = strlen(home)+strlen(configfile)+1;
+ filename = (char*)malloc(n*sizeof(char));
+ memset(filename,0,n);
+ strcat(filename, home);
+ strcat(filename, configfile);
+
+ loadConfig(filename); /* reload the configuration file */
+
+ free(filename);
+ filename = NULL;
+ }
}
fade *
@@ -2712,9 +2729,8 @@ main (int argc, char **argv)
usr_action.sa_mask = block_mask;
usr_action.sa_flags = 0;
sigaction(SIGUSR1, &usr_action, NULL);
-
- // atexit(delete_pid_file); // [FIXME] For some reason this gets confused and deletes the file early
- write_pid_file(getpid());
+ sigaction(SIGUSR2, &usr_action, NULL);
+ sigaction(SIGTERM, &usr_action, NULL);
loadConfig(NULL); /*we do that before cmdline-parsing, so config-values can be overridden*/
/*used for shadow colors*/
@@ -2931,6 +2947,11 @@ main (int argc, char **argv)
ufd.events = POLLIN;
if (!autoRedirect)
paint_all (dpy, None);
+
+ /* Under no circumstances should these two lines EVER be moved earlier in main() than this point */
+ atexit(delete_pid_file);
+ write_pid_file(getpid());
+
for (;;)
{
/* dump_wins (); */