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Bug: OS::MemoryMappedFile::open() should not truncate a pre-existing file.

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Patch by Mark Lam from Hewlett-Packard Development Company, LP

Review URL: http://codereview.chromium.org/6543039

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6872 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
mikhail.naganov@gmail.com 2011-02-21 17:17:26 +00:00
parent 123dbb2f5e
commit 3eb151ebea
7 changed files with 7 additions and 7 deletions
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2
src/platform-cygwin.cc
View File

@ -209,7 +209,7 @@ class PosixMemoryMappedFile : public OS::MemoryMappedFile {
OS::MemoryMappedFile* OS::MemoryMappedFile::open(const char* name) {
FILE* file = fopen(name, "w+");
FILE* file = fopen(name, "r+");
if (file == NULL) return NULL;
fseek(file, 0, SEEK_END);

2
src/platform-freebsd.cc
View File

@ -224,7 +224,7 @@ class PosixMemoryMappedFile : public OS::MemoryMappedFile {
OS::MemoryMappedFile* OS::MemoryMappedFile::open(const char* name) {
FILE* file = fopen(name, "w+");
FILE* file = fopen(name, "r+");
if (file == NULL) return NULL;
fseek(file, 0, SEEK_END);

2
src/platform-linux.cc
View File

@ -327,7 +327,7 @@ class PosixMemoryMappedFile : public OS::MemoryMappedFile {
OS::MemoryMappedFile* OS::MemoryMappedFile::open(const char* name) {
FILE* file = fopen(name, "w+");
FILE* file = fopen(name, "r+");
if (file == NULL) return NULL;
fseek(file, 0, SEEK_END);

2
src/platform-macos.cc
View File

@ -205,7 +205,7 @@ class PosixMemoryMappedFile : public OS::MemoryMappedFile {
OS::MemoryMappedFile* OS::MemoryMappedFile::open(const char* name) {
FILE* file = fopen(name, "w+");
FILE* file = fopen(name, "r+");
if (file == NULL) return NULL;
fseek(file, 0, SEEK_END);

2
src/platform-openbsd.cc
View File

@ -222,7 +222,7 @@ class PosixMemoryMappedFile : public OS::MemoryMappedFile {
OS::MemoryMappedFile* OS::MemoryMappedFile::open(const char* name) {
FILE* file = fopen(name, "w+");
FILE* file = fopen(name, "r+");
if (file == NULL) return NULL;
fseek(file, 0, SEEK_END);

2
src/platform-solaris.cc
View File

@ -235,7 +235,7 @@ class PosixMemoryMappedFile : public OS::MemoryMappedFile {
OS::MemoryMappedFile* OS::MemoryMappedFile::open(const char* name) {
FILE* file = fopen(name, "w+");
FILE* file = fopen(name, "r+");
if (file == NULL) return NULL;
fseek(file, 0, SEEK_END);

2
src/platform-win32.cc
View File

@ -939,7 +939,7 @@ OS::MemoryMappedFile* OS::MemoryMappedFile::open(const char* name) {
// Open a physical file
HANDLE file = CreateFileA(name, GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
if (file == NULL) return NULL;
if (file == INVALID_HANDLE_VALUE) return NULL;
int size = static_cast<int>(GetFileSize(file, NULL));