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Try to fix a communication problem caused by different permissions under linux

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This commit is contained in:
mutouyun 2024-12-01 19:53:40 +08:00
parent 5e5b347636
commit 84bb801b6e
1 changed files with 4 additions and 3 deletions
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7
src/libipc/platform/posix/shm_posix.cpp
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@ -68,13 +68,14 @@ id_t acquire(char const * name, std::size_t size, unsigned mode) {
flag |= O_CREAT;
break;
}
int fd = ::shm_open(op_name.c_str(), flag, S_IRUSR | S_IWUSR |
S_IRGRP | S_IWGRP |
S_IROTH | S_IWOTH);
int fd = ::shm_open(op_name.c_str(), flag, 0);
if (fd == -1) {
ipc::error("fail shm_open[%d]: %s\n", errno, op_name.c_str());
return nullptr;
}
::fchmod(fd, S_IRUSR | S_IWUSR |
S_IRGRP | S_IWGRP |
S_IROTH | S_IWOTH);
auto ii = mem::alloc<id_info_t>();
ii->fd_ = fd;
ii->size_ = size;