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Kovid Goyal 2017-09-28 16:34:34 +05:30
parent b644d4620a
commit bfd7675639
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 4 additions and 4 deletions
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8
kitty/graphics.c
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@ -460,14 +460,14 @@ W(shm_write) {
const char *name, *data;
Py_ssize_t sz;
PA("ss#", &name, &data, &sz);
int fd = shm_open(name, O_CREAT | O_RDWR, S_IROTH | S_IRUSR | S_IRGRP | S_IWUSR);
int fd = shm_open(name, O_CREAT | O_RDWR, S_IRUSR | S_IWUSR);
if (fd == -1) { PyErr_SetFromErrnoWithFilename(PyExc_OSError, name); return NULL; }
int ret = ftruncate(fd, sz);
if (ret != 0) { PyErr_SetFromErrnoWithFilename(PyExc_OSError, name); return NULL; }
if (ret != 0) { close(fd); PyErr_SetFromErrnoWithFilename(PyExc_OSError, name); return NULL; }
void *addr = mmap(0, sz, PROT_WRITE, MAP_SHARED, fd, 0);
if (addr == MAP_FAILED) { PyErr_SetFromErrnoWithFilename(PyExc_OSError, name); return NULL; }
if (addr == MAP_FAILED) { close(fd); PyErr_SetFromErrnoWithFilename(PyExc_OSError, name); return NULL; }
memcpy(addr, data, sz);
if (munmap(addr, sz) != 0) { PyErr_SetFromErrnoWithFilename(PyExc_OSError, name); return NULL; }
if (munmap(addr, sz) != 0) { close(fd); PyErr_SetFromErrnoWithFilename(PyExc_OSError, name); return NULL; }
close(fd);
Py_RETURN_NONE;
}