FreeBSD Manual Pages
xt_ff_dopen(3) Library Functions Manual xt_ff_dopen(3) NAME xt_ff_dopen() - Create a fast file stream from a file descriptor LIBRARY #include <fcntl.h> #include <xtend/fast-file.h> -lxtend SYNOPSIS xt_ff_t *xt_ff_dopen(int fd, int flags) ARGUMENTS fd Open file descriptor to which stream is attached flags Bit flags passed to open(3) DESCRIPTION xt_ff_dopen(3) initializes a xt_ff_t stream, much as fdopen(3) does for a FILE stream. Unlike fdopen(3), xt_ff_dopen(3) takes the same bit mask argument as open(2) to determine the open mode. See open(3) for details. An optimally sized buffer for the underlying filesystem is allocated, along with additional space for limited xt_ff_ungetc(3) operations. The xt_ff_t system is simpler than and much faster than traditional FILE on typical systems. It is intended for processing large files character-by-character, where low-level block I/O is not convenient, but FILE I/O causes a bottleneck. RETURN VALUES A pointer to a xt_ff_t object on success, NULL on failure EXAMPLES xt_ff_t *stream; char *filename; int fd; fd = open(filename, O_RDONLY); stream = xt_ff_dopen(fd, O_RDONLY); SEE ALSO xt_ff_open(3), open(3) xt_ff_dopen(3)
NAME | LIBRARY | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURN VALUES | EXAMPLES | SEE ALSO
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