Synchronize the contents of the specified numBytes of mapped memory beginning at the specified address with the underlying file on disk. If the specified syncFlag is true, block until all writes to nonvolatile media have actually completed, otherwise, return once they have been scheduled. Return 0 on success, and a non‐zero value otherwise. The behavior is undefined unless address is aligned on a page boundary, numBytes is a multiple of pageSize(), and 0 <= numBytes.

Synopsis

Declared in <bdls_filesystemutil.h>

static
int
sync(
    char* address,
    std::size_t numBytes,
    bool syncFlag);

Created with MrDocs