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authornacitar sevaht <nacitar@ubercpp.com>2011-05-08 02:40:56 (GMT)
committerMathias Gumz <akira at fluxbox dot org>2011-05-08 05:47:02 (GMT)
commit2f166eb4aeb5d77407e9380d644215cd5e94d592 (patch)
tree8ddb3321158418d0af332bad8b82e6ea7bcd678a
parentde2cca8988f43443f83f6f324c73d6ea03edfae3 (diff)
downloadfluxbox_paul-2f166eb4aeb5d77407e9380d644215cd5e94d592.zip
fluxbox_paul-2f166eb4aeb5d77407e9380d644215cd5e94d592.tar.bz2
fluxbox-remote now properly returns exit status
The previous check relied upon the (undocumented) return value of XChangeProperty to determine the exit status; at least, on my gentoo system, the function seems to return 1 even when it fails to change the property due to contrived, and invalid, parameters. However, setting an error handler allows proper detection of this case. So, now the return status properly indicates whether or not the property was changed (but not whether fluxbox liked the command!).
-rw-r--r--util/fluxbox-remote.cc25
1 files changed, 20 insertions, 5 deletions
diff --git a/util/fluxbox-remote.cc b/util/fluxbox-remote.cc
index 05f251a..5c66583 100644
--- a/util/fluxbox-remote.cc
+++ b/util/fluxbox-remote.cc
@@ -25,6 +25,14 @@
25#include <stdlib.h> 25#include <stdlib.h>
26#include <stdio.h> 26#include <stdio.h>
27 27
28bool g_gotError;
29static int HandleIPCError(Display *disp, XErrorEvent*ptr)
30{
31 // ptr->error_code contains the actual error flags
32 g_gotError=true;
33 return( 0 );
34}
35
28int main(int argc, char **argv) { 36int main(int argc, char **argv) {
29 37
30 if (argc <= 1) { 38 if (argc <= 1) {
@@ -42,14 +50,21 @@ int main(int argc, char **argv) {
42 Window root = DefaultRootWindow(disp); 50 Window root = DefaultRootWindow(disp);
43 51
44 char *str = argv[1]; 52 char *str = argv[1];
45 int ret = XChangeProperty(disp, root, fbcmd_atom, 53
54 typedef int (*x_error_handler_t)(Display*,XErrorEvent*);
55
56 // assign the custom handler, clear the flag, sync the data, then check it for success/failure
57 x_error_handler_t handler = XSetErrorHandler( HandleIPCError );
58 g_gotError=false;
59 XChangeProperty(disp, root, fbcmd_atom,
46 XA_STRING, 8, PropModeReplace, 60 XA_STRING, 8, PropModeReplace,
47 (unsigned char *) str, strlen(str)); 61 (unsigned char *) str, strlen(str));
48 XCloseDisplay(disp); 62 XSync(disp,False);
63 int ret=(g_gotError?EXIT_FAILURE:EXIT_SUCCESS);
64 XSetErrorHandler(handler);
49 65
50 if (ret == Success) 66 XCloseDisplay(disp);
51 return EXIT_SUCCESS;
52 67
53 return EXIT_FAILURE; 68 return ret;
54} 69}
55 70