--- a/Lib/multiprocessing/heap.py +++ b/Lib/multiprocessing/heap.py @@ -70,7 +70,7 @@ """ if sys.platform == 'linux': - _dir_candidates = ['/dev/shm'] + _dir_candidates = [] else: _dir_candidates = [] --- a/Modules/_multiprocessing/multiprocessing.c +++ b/Modules/_multiprocessing/multiprocessing.c @@ -172,7 +172,7 @@ _MULTIPROCESSING_RECV_METHODDEF _MULTIPROCESSING_SEND_METHODDEF #endif -#if !defined(POSIX_SEMAPHORES_NOT_ENABLED) && !defined(__ANDROID__) +#if !defined(POSIX_SEMAPHORES_NOT_ENABLED) _MULTIPROCESSING_SEM_UNLINK_METHODDEF #endif {NULL} --- a/Modules/_multiprocessing/posixshmem.c +++ b/Modules/_multiprocessing/posixshmem.c @@ -11,6 +11,72 @@ #include #endif +#ifdef __ANDROID__ +#include +#include +#include +#include +#include +static int shm_unlink(const char *name) { + size_t namelen; + char *fname; + + /* Construct the filename. */ + while (name[0] == '/') ++name; + + if (name[0] == '\0') { + /* The name "/" is not supported. */ + errno = EINVAL; + return -1; + } + + namelen = strlen(name); + fname = (char *) alloca(sizeof("@TERMUX_PREFIX@/tmp/") - 1 + namelen + 1); + memcpy(fname, "@TERMUX_PREFIX@/tmp/", sizeof("@TERMUX_PREFIX@/tmp/") - 1); + memcpy(fname + sizeof("@TERMUX_PREFIX@/tmp/") - 1, name, namelen + 1); + + return unlink(fname); +} + +static int shm_open(const char *name, int oflag, mode_t mode) { + size_t namelen; + char *fname; + int fd; + + /* Construct the filename. */ + while (name[0] == '/') ++name; + + if (name[0] == '\0') { + /* The name "/" is not supported. */ + errno = EINVAL; + return -1; + } + + namelen = strlen(name); + fname = (char *) alloca(sizeof("@TERMUX_PREFIX@/tmp/") - 1 + namelen + 1); + memcpy(fname, "@TERMUX_PREFIX@/tmp/", sizeof("@TERMUX_PREFIX@/tmp/") - 1); + memcpy(fname + sizeof("@TERMUX_PREFIX@/tmp/") - 1, name, namelen + 1); + + fd = open(fname, oflag, mode); + if (fd != -1) { + /* We got a descriptor. Now set the FD_CLOEXEC bit. */ + int flags = fcntl(fd, F_GETFD, 0); + flags |= FD_CLOEXEC; + flags = fcntl(fd, F_SETFD, flags); + + if (flags == -1) { + /* Something went wrong. We cannot return the descriptor. */ + int save_errno = errno; + close(fd); + fd = -1; + errno = save_errno; + } + } + + return fd; +} +#endif + /*[clinic input] module _posixshmem [clinic start generated code]*/