Consistently use strerror in libutils.
It's easier for people to debug, and side-steps the problem that errno
values differ between architectures.
Bug: http://b/17458391
Change-Id: I1db9b2cbb653839d3936b91e37e5cff02671318a
diff --git a/libutils/Looper.cpp b/libutils/Looper.cpp
index 9a2dd6c..20c1e92 100644
--- a/libutils/Looper.cpp
+++ b/libutils/Looper.cpp
@@ -17,9 +17,11 @@
#include <utils/Looper.h>
#include <utils/Timers.h>
-#include <unistd.h>
+#include <errno.h>
#include <fcntl.h>
#include <limits.h>
+#include <string.h>
+#include <unistd.h>
namespace android {
@@ -71,32 +73,32 @@
mResponseIndex(0), mNextMessageUptime(LLONG_MAX) {
int wakeFds[2];
int result = pipe(wakeFds);
- LOG_ALWAYS_FATAL_IF(result != 0, "Could not create wake pipe. errno=%d", errno);
+ LOG_ALWAYS_FATAL_IF(result != 0, "Could not create wake pipe: %s", strerror(errno));
mWakeReadPipeFd = wakeFds[0];
mWakeWritePipeFd = wakeFds[1];
result = fcntl(mWakeReadPipeFd, F_SETFL, O_NONBLOCK);
- LOG_ALWAYS_FATAL_IF(result != 0, "Could not make wake read pipe non-blocking. errno=%d",
- errno);
+ LOG_ALWAYS_FATAL_IF(result != 0, "Could not make wake read pipe non-blocking: %s",
+ strerror(errno));
result = fcntl(mWakeWritePipeFd, F_SETFL, O_NONBLOCK);
- LOG_ALWAYS_FATAL_IF(result != 0, "Could not make wake write pipe non-blocking. errno=%d",
- errno);
+ LOG_ALWAYS_FATAL_IF(result != 0, "Could not make wake write pipe non-blocking: %s",
+ strerror(errno));
mIdling = false;
// Allocate the epoll instance and register the wake pipe.
mEpollFd = epoll_create(EPOLL_SIZE_HINT);
- LOG_ALWAYS_FATAL_IF(mEpollFd < 0, "Could not create epoll instance. errno=%d", errno);
+ LOG_ALWAYS_FATAL_IF(mEpollFd < 0, "Could not create epoll instance: %s", strerror(errno));
struct epoll_event eventItem;
memset(& eventItem, 0, sizeof(epoll_event)); // zero out unused members of data field union
eventItem.events = EPOLLIN;
eventItem.data.fd = mWakeReadPipeFd;
result = epoll_ctl(mEpollFd, EPOLL_CTL_ADD, mWakeReadPipeFd, & eventItem);
- LOG_ALWAYS_FATAL_IF(result != 0, "Could not add wake read pipe to epoll instance. errno=%d",
- errno);
+ LOG_ALWAYS_FATAL_IF(result != 0, "Could not add wake read pipe to epoll instance: %s",
+ strerror(errno));
}
Looper::~Looper() {
@@ -233,7 +235,7 @@
if (errno == EINTR) {
goto Done;
}
- ALOGW("Poll failed with an unexpected error, errno=%d", errno);
+ ALOGW("Poll failed with an unexpected error: %s", strerror(errno));
result = POLL_ERROR;
goto Done;
}
@@ -377,7 +379,7 @@
if (nWrite != 1) {
if (errno != EAGAIN) {
- ALOGW("Could not write wake signal, errno=%d", errno);
+ ALOGW("Could not write wake signal: %s", strerror(errno));
}
}
}
@@ -447,14 +449,14 @@
if (requestIndex < 0) {
int epollResult = epoll_ctl(mEpollFd, EPOLL_CTL_ADD, fd, & eventItem);
if (epollResult < 0) {
- ALOGE("Error adding epoll events for fd %d, errno=%d", fd, errno);
+ ALOGE("Error adding epoll events for fd %d: %s", fd, strerror(errno));
return -1;
}
mRequests.add(fd, request);
} else {
int epollResult = epoll_ctl(mEpollFd, EPOLL_CTL_MOD, fd, & eventItem);
if (epollResult < 0) {
- ALOGE("Error modifying epoll events for fd %d, errno=%d", fd, errno);
+ ALOGE("Error modifying epoll events for fd %d: %s", fd, strerror(errno));
return -1;
}
mRequests.replaceValueAt(requestIndex, request);
@@ -477,7 +479,7 @@
int epollResult = epoll_ctl(mEpollFd, EPOLL_CTL_DEL, fd, NULL);
if (epollResult < 0) {
- ALOGE("Error removing epoll events for fd %d, errno=%d", fd, errno);
+ ALOGE("Error removing epoll events for fd %d: %s", fd, strerror(errno));
return -1;
}
diff --git a/libutils/ProcessCallStack.cpp b/libutils/ProcessCallStack.cpp
index db07e56..011c302 100644
--- a/libutils/ProcessCallStack.cpp
+++ b/libutils/ProcessCallStack.cpp
@@ -17,9 +17,10 @@
#define LOG_TAG "ProcessCallStack"
// #define LOG_NDEBUG 0
-#include <string.h>
-#include <stdio.h>
#include <dirent.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
#include <utils/Log.h>
#include <utils/Errors.h>
@@ -135,8 +136,8 @@
dp = opendir(PATH_SELF_TASK);
if (dp == NULL) {
- ALOGE("%s: Failed to update the process's call stacks (errno = %d, '%s')",
- __FUNCTION__, errno, strerror(errno));
+ ALOGE("%s: Failed to update the process's call stacks: %s",
+ __FUNCTION__, strerror(errno));
return;
}
@@ -172,8 +173,8 @@
ssize_t idx = mThreadMap.add(tid, ThreadInfo());
if (idx < 0) { // returns negative error value on error
- ALOGE("%s: Failed to add new ThreadInfo (errno = %zd, '%s')",
- __FUNCTION__, idx, strerror(-idx));
+ ALOGE("%s: Failed to add new ThreadInfo: %s",
+ __FUNCTION__, strerror(-idx));
continue;
}
@@ -195,8 +196,8 @@
__FUNCTION__, tid, threadInfo.callStack.size());
}
if (code != 0) { // returns positive error value on error
- ALOGE("%s: Failed to readdir from %s (errno = %d, '%s')",
- __FUNCTION__, PATH_SELF_TASK, -code, strerror(code));
+ ALOGE("%s: Failed to readdir from %s: %s",
+ __FUNCTION__, PATH_SELF_TASK, strerror(code));
}
#endif
diff --git a/libutils/SystemClock.cpp b/libutils/SystemClock.cpp
index ac3dd98..64204a8 100644
--- a/libutils/SystemClock.cpp
+++ b/libutils/SystemClock.cpp
@@ -29,7 +29,6 @@
#include <sys/time.h>
#include <limits.h>
#include <fcntl.h>
-#include <errno.h>
#include <string.h>
#include <utils/SystemClock.h>
diff --git a/libutils/Threads.cpp b/libutils/Threads.cpp
index 1e014c6..c3666e4 100644
--- a/libutils/Threads.cpp
+++ b/libutils/Threads.cpp
@@ -22,6 +22,7 @@
#include <memory.h>
#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
#include <unistd.h>
#if !defined(_WIN32)
@@ -160,9 +161,9 @@
(android_pthread_entry)entryFunction, userData);
pthread_attr_destroy(&attr);
if (result != 0) {
- ALOGE("androidCreateRawThreadEtc failed (entry=%p, res=%d, errno=%d)\n"
+ ALOGE("androidCreateRawThreadEtc failed (entry=%p, res=%d, %s)\n"
"(android threadPriority=%d)",
- entryFunction, result, errno, threadPriority);
+ entryFunction, result, strerror(errno), threadPriority);
return 0;
}
diff --git a/libutils/Tokenizer.cpp b/libutils/Tokenizer.cpp
index 610002f..2d0e83d 100644
--- a/libutils/Tokenizer.cpp
+++ b/libutils/Tokenizer.cpp
@@ -56,12 +56,12 @@
int fd = ::open(filename.string(), O_RDONLY);
if (fd < 0) {
result = -errno;
- ALOGE("Error opening file '%s', %s.", filename.string(), strerror(errno));
+ ALOGE("Error opening file '%s': %s", filename.string(), strerror(errno));
} else {
struct stat stat;
if (fstat(fd, &stat)) {
result = -errno;
- ALOGE("Error getting size of file '%s', %s.", filename.string(), strerror(errno));
+ ALOGE("Error getting size of file '%s': %s", filename.string(), strerror(errno));
} else {
size_t length = size_t(stat.st_size);
@@ -83,7 +83,7 @@
ssize_t nrd = read(fd, buffer, length);
if (nrd < 0) {
result = -errno;
- ALOGE("Error reading file '%s', %s.", filename.string(), strerror(errno));
+ ALOGE("Error reading file '%s': %s", filename.string(), strerror(errno));
delete[] buffer;
buffer = NULL;
} else {
diff --git a/libutils/misc.cpp b/libutils/misc.cpp
index ed1ba23..216dc14 100644
--- a/libutils/misc.cpp
+++ b/libutils/misc.cpp
@@ -24,7 +24,6 @@
#include <sys/stat.h>
#include <string.h>
-#include <errno.h>
#include <stdio.h>
#if !defined(_WIN32)