Create a stream from a VMO.
#include <zircon/syscalls.h> zx_status_t zx_stream_create(uint32_t options, zx_handle_t vmo, zx_off_t seek, zx_handle_t* out_stream);
zx_stream_create() creates a stream, which reads and writes the data in an
The seek offset for the stream is initialized to seek.
ZX_STREAM_MODE_READ The stream will be used for reading. If the given vmo lacks ZX_RIGHT_READ, this function will return ZX_ERR_ACCESS_DENIED. Otherwise, ZX_RIGHT_READ will be included as a right on the created stream object.
ZX_STREAM_MODE_WRITE The stream will be used for writing. If the given vmo lacks ZX_RIGHT_WRITE, this function will return ZX_ERR_ACCESS_DENIED. Otherwise, ZX_RIGHT_WRITE will be included as a right on the created stream object.
ZX_STREAM_MODE_APPEND The stream is created in append mode. A stream in
append mode will atomically set the seek offset of the stream to the content
size of the stream prior to writing data in
zx_stream_create() returns ZX_OK on success. In the event of
failure, one of the following values is returned.
ZX_ERR_BAD_HANDLE vmo is not a valid handle.
ZX_ERR_WRONG_TYPE vmo is not a VMO handle.
ZX_ERR_ACCESS_DENIED vmo does not have the rights required for the given options.
ZX_ERR_INVALID_ARGS out_stream is an invalid pointer or NULL, options has an unsupported bit set to 1.
ZX_ERR_NO_MEMORY Failure due to lack of memory.