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3 Commits

Author SHA1 Message Date
Nick Kralevich
396497085a sharedmem.cpp: replace dup() with fcntl(F_DUPFD_CLOEXEC) 
Replace calls to dup() with fcntl(F_DUPFD_CLOEXEC). The only difference
between the two is that O_CLOEXEC is set on the newly duped file
descriptor. This helps address file descriptor leaks crossing an exec()
boundary.

Test: compiles and boots
Change-Id: I95218331382b7a3432d31a46c173009dc4df1a6b
 2019-01-14 13:53:40 -08:00
John Reck
e4f60cce85 SharedMemory API changes 
Hides getFd & getFileDescriptor due to lifecycle concenrs.
Adds ASharedMemory_dupFromJava to allow sharing a shared
memory region between Java & Native as safe as possible.
Mis-use results in an FD leak instead of double-close.

Bug: 64394076
Test: SharedMemory CTS tests
Change-Id: I01a5eb978fc4e99559a79baac75754c32f13bdc4
 2017-08-07 15:36:10 -07:00
Peng Xu
5f88ac5cce Added implementation of shared memory NDK API 
Implemeneted the following APIs:

*  int ASharedMemory_create(const char *name, size_t size);
*  size_t ASharedMemory_getSize(int fd);
*  int ASharedMemory_setProt(int fd, int prot);

Test: cts-tradefed run cts --module CtsSensorTestCases \
      --test android.hardware.cts.SensorNativeTest
Bug: 5995644, 30985702

Change-Id: I645b35e67293673efce9bb90f042ec0d3b83aa42
 2017-02-24 02:42:51 -08:00