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| author | Annamalai Lakshmanan <annamalai.lakshmanan@linaro.org> | 2012-03-22 20:26:25 +0530 |
|---|---|---|
| committer | Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org> | 2012-03-29 09:52:18 +0200 |
| commit | cbf3a1074b36ef3c0ad0eb66698a22710cc3649d (patch) | |
| tree | 560b511b23dff0135cdd40d77479a1d3a8568727 | |
| parent | 19d62121275dc9f382ec0f741a4ba7e8017bba1d (diff) | |
| download | core-cbf3a1074b36ef3c0ad0eb66698a22710cc3649d.tar.gz | |
origen: Added command to signal surfaceflinger
Added command to signal surfaceflinger for IPC
Change-Id: I60847d6e36e7c29a8e09e96c8d166ae1d321f396
Signed-off-by: Annamalai Lakshmanan <annamalai.lakshmanan@linaro.org>
| -rw-r--r-- | toolbox/Android.mk | 3 | ||||
| -rw-r--r-- | toolbox/refreshSurfaceFlinger.c | 42 |
2 files changed, 44 insertions, 1 deletions
diff --git a/toolbox/Android.mk b/toolbox/Android.mk index d7a675a70..49725ce24 100644 --- a/toolbox/Android.mk +++ b/toolbox/Android.mk @@ -55,7 +55,8 @@ TOOLS := \ nandread \ ionice \ touch \ - lsof + lsof \ + refreshSurfaceFlinger ifneq (,$(filter userdebug eng,$(TARGET_BUILD_VARIANT))) TOOLS += r diff --git a/toolbox/refreshSurfaceFlinger.c b/toolbox/refreshSurfaceFlinger.c new file mode 100644 index 000000000..e6aef8102 --- /dev/null +++ b/toolbox/refreshSurfaceFlinger.c @@ -0,0 +1,42 @@ +/* + * Send a signal to surfaceflinger, causing it to reconfigure + * itself based on properties set elsewhere. + * + * This program is released under the Apache Software License 2.0. + * + * (C) 2012 Bernhard "Bero" Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org> + */ +#include <sys/types.h> +#include <sys/stat.h> +#include <signal.h> +#include <string.h> +#include <dirent.h> +#include <assert.h> + +int refreshSurfaceFlinger_main(int argc, char **argv) { + struct dirent *de; + DIR *d=opendir("/proc"); + assert(d); + while(de=readdir(d)) { + pid_t p=atoi(de->d_name); + if(!p) // Not /proc/<PID> + continue; + char fn[strlen(de->d_name)+11]; + char executable[NAME_MAX]; + struct stat st; + fn[sizeof(fn)-1]=0; + strcpy(fn, "/proc/"); + strcat(fn, de->d_name); + strcat(fn, "/exe"); + ssize_t s=readlink(fn, executable, sizeof(executable)); + if(s<0) // Not what we're looking for [probably an in-kernel process] + continue; + executable[s]=0; + if(!strcmp(executable, "/system/bin/surfaceflinger")) { + kill(p, SIGUSR1); + break; + } + } + closedir(d); + return 0; +} |