NAME

soldout_buffer, bufcasecmp, bufcmp, bufcmps, bufdup, bufgrow, bufnew, bufnullterm, bufprintf, bufput, bufputs, bufputc, bufrelease, bufreset, bufset, bufslurp, buftoi, vbufprintf —

buffer handling functions for soldout

SYNOPSIS

#include <buffer.h>

#define CONST_BUF(name, string)
#define VOLATILE_BUF(name, strname)
#define BUFPUTSL(output, literal)

int
bufcasecmp(const struct buf *a, const struct buf *b);

int
bufcmp(const struct buf *a, const struct buf *b);

int
bufcmps(const struct buf *a, const char *b);

struct buf *
bufdup(const struct buf *src, size_t dupunit);

int
bufgrow(struct buf *buf, size_t sz);

struct buf *
bufnew(size_t unit);

void
bufnullterm(struct buf *buf);

void
bufprintf(struct buf *buf, const char *fmt, ...);

void
bufput(struct buf *buf, const void *data, size_t len);

void
bufputs(struct buf *buf, const char *str);

void
bufputc(struct buf *buf, char c);

void
bufrelease(struct buf *buf);

void
bufreset(struct buf *buf);

void
bufset(struct buf **dest, struct buf *src);

void
bufslurp(struct buf *buf, size_t len);

int
buftoi(struct buf *buf, size_t offset_i, size_t *offset_o);

void
vbufprintf(struct buf *buf, const char *fmt, va_list ap);

extern long buffer_stat_nb;
extern size_t buffer_stat_alloc_bytes;

DESCRIPTION

Variables

Compile time options. Statistics are kept about memory usage.

buffer_stat_nb: show how many buffers were created.
buffer_stat_alloc_bytes: show how many bytes were allocated.

Types

struct buf

character array buffer. Consists of the following fields:

char * data: actual character data.
size_t size: size of the string.
size_t asize: allocated size (0 = volatile buffer).
size_t unit: reallocation unit size (0 = read-only buffer).
int ref: reference count.

Macros

CONST_BUF: create a global buffer name from a string literal string.
VOLATILE_BUF: create a volatile buffer name on the stack from a string strname.
BUFPUTSL: optimized bufputs() of a string literal.

Functions

bufcasecmp(): compare two buffers ignoring case.
bufcmp(): compare two buffers.
bufcmps(): compare a buffer to a string.
bufdup(): duplicate a buffer src.
bufgrow(): increase the allocated size to the given value.
bufnew(): create a new buffer.
bufnullterm(): terminate the string array by NUL (making a C-string).
bufprintf(): print formatted output to a buffer buf.
bufput(): append raw data to a buffer buf.
bufputs(): append a NUL-terminated string str to a buffer buf.
bufputc(): append a single char c to a buffer buf.
bufrelease(): decrease the reference count and free the buffer buf if needed.
bufreset(): free internal data of the buffer buf.
bufset(): safely assign a buffer to another.
bufslurp(): remove a given number of bytes from the head of the array.
buftoi(): convert the numbers at the beginning of the buffer buf into an int.
vbufprintf(): stdarg(3) variant of formatted printing into a buffer buf.

RETURN VALUES

The bufcasecmp(), bufcmp() and bufcmps() functions return an integer less than, equal to, or greater than zero if a is found, respectively, to be less than, to match, or be greater than b.

The bufdup() and bufnew() functions return a struct buf * on success; on error they return NULL.

The bufgrow() function returns on success 1; on error - 0.

The bufnullterm(), bufprintf(), bufput(), bufputs(), bufputc(), bufrelease(), bufreset(), bufset(), bufslurp() and vbufprintf() functions do not return a value.

The buftoi() function return the converted value.

AUTHORS

The soldout library was written by Natasha “Kerensikova” Porte <natacha@instinctive.eu>. Manual page was originally written by Massimo Manghi <mxmanghi@apache.org>, and rewritten to mdoc format by Svyatoslav Mishyn <juef@openmailbox.org>.