_fread_nolock
Reads data from a stream without locking.
Syntax
size_t _fread_nolock(
void *buffer,
size_t size,
size_t count,
FILE *stream
);
Parameters
buffer
Storage location for data.
size
Item size in bytes.
count
Maximum number of items to be read.
stream
Pointer to the FILE structure.
Return value
See fread.
Remarks
This function is a non-locking version of fread. It's identical to fread except that it isn't protected from interference by other threads. It might be faster because it doesn't incur the overhead of locking out other threads. Use this function only in thread-safe contexts such as single-threaded applications or where the calling scope already handles thread isolation.
By default, this function's global state is scoped to the application. To change this behavior, see Global state in the CRT.
Requirements
| Function | Required header |
|---|---|
_fread_nolock |
<stdio.h> |
For more compatibility information, see Compatibility.