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Bug 607534 - Optimize custom dynamic loader to use less memory, r=cjones a=blocking-fennec

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This commit is contained in:
Michael Wu
2010-10-29 12:22:28 -07:00
parent 979e319453
commit bdc61e4778
6 changed files with 217 additions and 30 deletions
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12
ipc/glue/SharedMemoryBasic_android.cpp
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@@ -56,15 +56,7 @@
// Temporarily go directly to the kernel interface until we can
// interact better with libcutils.
//
#define ASHMEM_DEVICE "/dev/ashmem"
#define ASHMEM_NAME_LEN 256
#define __ASHMEMIOC 0x77
#define ASHMEM_SET_NAME _IOW(__ASHMEMIOC, 1, char[ASHMEM_NAME_LEN])
#define ASHMEM_GET_NAME _IOR(__ASHMEMIOC, 2, char[ASHMEM_NAME_LEN])
#define ASHMEM_SET_SIZE _IOW(__ASHMEMIOC, 3, size_t)
#define ASHMEM_GET_SIZE _IO(__ASHMEMIOC, 4)
#define ASHMEM_SET_PROT_MASK _IOW(__ASHMEMIOC, 5, unsigned long)
#define ASHMEM_GET_PROT_MASK _IO(__ASHMEMIOC, 6)
#include <linux/ashmem.h>
namespace mozilla {
namespace ipc {
@@ -102,7 +94,7 @@ SharedMemoryBasic::Create(size_t aNbytes)
NS_ABORT_IF_FALSE(-1 == mShmFd, "Already Create()d");
// Carve a new instance off of /dev/ashmem
int shmfd = open(ASHMEM_DEVICE, O_RDWR, 0600);
int shmfd = open("/" ASHMEM_NAME_DEF, O_RDWR, 0600);
if (-1 == shmfd) {
LogError("ShmemAndroid::Create():open");
return false;