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 ar- gument 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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