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platform_system_core
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Merge "Lower the priority of the threads in logd/logcat." into mnc-dev

This commit is contained in:
Mark Salyzyn 2015-06-09 19:42:44 +00:00 committed by Android (Google) Code Review
parent 03196c9c75 d98f4e8af5
commit 3a1ff5ab65
2 changed files with 13 additions and 0 deletions
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6
logcat/logcat.cpp
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@ -14,6 +14,7 @@
#include <stdlib.h>
#include <string.h>
#include <sys/cdefs.h>
#include <sys/resource.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/types.h>
@ -33,6 +34,7 @@
#include <log/logd.h>
#include <log/logger.h>
#include <log/logprint.h>
#include <utils/threads.h>
#define DEFAULT_MAX_ROTATED_LOGS 4
@ -221,6 +223,10 @@ static void setupOutput()
fprintf(stderr, "failed to set to batch scheduler\n");
}
if (setpriority(PRIO_PROCESS, 0, ANDROID_PRIORITY_BACKGROUND) < 0) {
fprintf(stderr, "failed set to priority\n");
}
g_outFD = openLogFile (g_outputFileName);
if (g_outFD < 0) {

7
logd/main.cpp
View File

@ -27,6 +27,7 @@
#include <sys/capability.h>
#include <sys/klog.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <syslog.h>
@ -37,6 +38,7 @@
#include <cutils/sockets.h>
#include <log/event_tag_map.h>
#include <private/android_filesystem_config.h>
#include <utils/threads.h>
#include "CommandListener.h"
#include "LogBuffer.h"
@ -91,6 +93,10 @@ static int drop_privs() {
return -1;
}
if (setpriority(PRIO_PROCESS, 0, ANDROID_PRIORITY_BACKGROUND) < 0) {
return -1;
}
if (prctl(PR_SET_KEEPCAPS, 1) < 0) {
return -1;
}
@ -156,6 +162,7 @@ static LogBuffer *logBuf = NULL;
static void *reinit_thread_start(void * /*obj*/) {
prctl(PR_SET_NAME, "logd.daemon");
set_sched_policy(0, SP_BACKGROUND);
setpriority(PRIO_PROCESS, 0, ANDROID_PRIORITY_BACKGROUND);
setgid(AID_SYSTEM);
setuid(AID_SYSTEM);