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	io.h - blind - suckless command-line video editing utility
	git clone git://git.suckless.org/blind
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	io.h (2028B)
	---
	1 /* See LICENSE file for copyright and license details. */
	2 #include <fcntl.h>
	3 #include <errno.h>
	4
	5 #if defined(POSIX_FADV_SEQUENTIAL)
	6 # define fadvise_sequential(...) posix_fadvise(__VA_ARGS__, POSIX_FADV_…
	7 #else
	8 # define fadvise_sequential(...)
	9 #endif
	10
	11 #if defined(POSIX_FADV_RANDOM)
	12 # define fadvise_random(...) posix_fadvise(__VA_ARGS__, POSIX_FADV_RAND…
	13 #else
	14 # define fadvise_random(...)
	15 #endif
	16
	17 #define ewriteall(...) enwriteall(1, __VA_ARGS__)
	18 #define ereadall(...) enreadall(1, __VA_ARGS__)
	19 #define epwriteall(...) enpwriteall(1, __VA_ARGS__)
	20 #define ewritezeroes(...) enwritezeroes(1, __VA_ARGS__)
	21 #define egetfile(...) engetfile(1, __VA_ARGS__)
	22
	23 int writeall(int fd, const void *buf, size_t n);
	24
	25 static inline void
	26 enwriteall(int status, int fd, const void buf, size_t n, const char fn…
	27 {
	28 if (writeall(fd, buf, n))
	29 enprintf(status, "write %s:", fname);
	30 }
	31
	32 ssize_t readall(int fd, void *buf, size_t n);
	33
	34 static inline size_t
	35 enreadall(int status, int fd, void buf, size_t n, const char fname)
	36 {
	37 ssize_t r = readall(fd, buf, n);
	38 if (r < 0)
	39 enprintf(status, "read %s:", fname);
	40 return (size_t)r;
	41 }
	42
	43 int pwriteall(int fd, const void *buf, size_t n, off_t ptr);
	44
	45 static inline void
	46 enpwriteall(int status, int fd, const void *buf, size_t n, off_t ptr, co…
	47 {
	48 if (pwriteall(fd, buf, n, ptr))
	49 enprintf(status, "pwrite %s:", fname);
	50 }
	51
	52 int writezeroes(int fd, const void *buf, size_t bufsize, size_t n);
	53
	54 static inline void
	55 enwritezeroes(int status, int fd, const void *buf, size_t bufsize, size_…
	56 {
	57 if (writezeroes(fd, buf, bufsize, n))
	58 enprintf(status, "write %s:", fname);
	59 }
	60
	61 int getfile(int fd, void bufp, size_t restrict ptrp, size_t *restrict …
	62
	63 static inline void
	64 engetfile(int status, int fd, void bufp, size_t restrict ptrp,
	65 size_t restrict sizep, const char fname)
	66 {
	67 if (getfile(fd, bufp, ptrp, sizep)) {
	68 if (errno == ENOMEM)
	69 enprintf(status, "realloc:");
	70 else
	71 enprintf(status, "read %s:", fname);
	72 }
	73 }