Variable length buffers

Collaboration diagram for Variable length buffers:

Data Structures
struct	varbuf
	varbuf_init must be called exactly once before the use of each varbuf (including before any call to varbuf_destroy), or the variable must be initialized with VARBUF_INIT. More...
struct	varbuf_state

Macros
#define	VARBUF_INIT   { 0, 0, NULL }
#define	VARBUF_OBJECT   (struct varbuf)VARBUF_INIT
#define	varbuf_set_str(v, s)   varbuf_set_buf(v, s, strlen(s))
#define	varbuf_set_strn(v, s, n)   varbuf_set_buf(v, s, strnlen(s, n))
#define	varbuf_add_str(v, s)   varbuf_add_buf(v, s, strlen(s))
#define	varbuf_add_strn(v, s, n)   varbuf_add_buf(v, s, strnlen(s, n))

Functions
struct varbuf *	varbuf_new (size_t size)
void	varbuf_init (struct varbuf *v, size_t size)
void	varbuf_grow (struct varbuf *v, size_t need_size)
void	varbuf_trunc (struct varbuf *v, size_t used_size)
char *	varbuf_detach (struct varbuf *v)
void	varbuf_reset (struct varbuf *v)
void	varbuf_destroy (struct varbuf *v)
void	varbuf_free (struct varbuf *v)
const char *	varbuf_str (struct varbuf *v)
void	varbuf_set_varbuf (struct varbuf *v, struct varbuf *other)
void	varbuf_set_buf (struct varbuf *v, const void *buf, size_t size)
void	varbuf_add_varbuf (struct varbuf *v, const struct varbuf *other)
void	varbuf_add_char (struct varbuf *v, int c)
void	varbuf_dup_char (struct varbuf *v, int c, size_t n)
void	varbuf_map_char (struct varbuf *v, int c_src, int c_dst)
void	varbuf_add_dir (struct varbuf *v, const char *dirname)
void	varbuf_add_buf (struct varbuf *v, const void *s, size_t size)
bool	varbuf_has_prefix (struct varbuf *v, struct varbuf *prefix)
bool	varbuf_has_suffix (struct varbuf *v, struct varbuf *suffix)
void	varbuf_trim_varbuf_prefix (struct varbuf *v, struct varbuf *prefix)
void	varbuf_trim_char_prefix (struct varbuf *v, int prefix)
int	varbuf_printf (struct varbuf *v, const char *fmt,...) DPKG_ATTR_PRINTF(2)
int	varbuf_vprintf (struct varbuf *v, const char *fmt, va_list va) DPKG_ATTR_VPRINTF(2)
void	varbuf_snapshot (struct varbuf *v, struct varbuf_state *vs)
void	varbuf_rollback (struct varbuf_state *vs)
size_t	varbuf_rollback_len (struct varbuf_state *vs)
const char *	varbuf_rollback_start (struct varbuf_state *vs)

Detailed Description

Macro Definition Documentation

varbuf_add_str

#define varbuf_add_str	(		v,
			s
	)		varbuf_add_buf(v, s, strlen(s))

varbuf_add_strn

#define varbuf_add_strn	(		v,
			s,
			n
	)		varbuf_add_buf(v, s, strnlen(s, n))

VARBUF_INIT

#define VARBUF_INIT   { 0, 0, NULL }

VARBUF_OBJECT

#define VARBUF_OBJECT   (struct varbuf)VARBUF_INIT

varbuf_set_str

#define varbuf_set_str	(		v,
			s
	)		varbuf_set_buf(v, s, strlen(s))

varbuf_set_strn

#define varbuf_set_strn	(		v,
			s,
			n
	)		varbuf_set_buf(v, s, strnlen(s, n))

Function Documentation

varbuf_add_buf()

void varbuf_add_buf	(	struct varbuf *	v,
		const void *	s,
		size_t	size
	)

References buf, size, used, and varbuf_grow().

Referenced by pkg_format_print(), pkg_source_version(), and varbuf_set_buf().

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varbuf_add_char()

void varbuf_add_char	(	struct varbuf *	v,
		int	c
	)

References buf, used, and varbuf_grow().

Referenced by command_in_path(), commandfd(), depisok(), get_force_string(), log_message(), pkg_infodb_get_file(), setselections(), statusfd_send(), trigproc(), varbuf_add_arbfield(), varbuf_add_archqual(), varbuf_add_dir(), varbufdependency(), varbufversion(), w_architecture(), w_archives(), w_booleandefno(), w_charfield(), w_conffiles(), w_configversion(), w_dependency(), w_multiarch(), w_name(), w_priority(), w_section(), w_status(), w_trigaw(), w_trigpend(), w_version(), and writedb_stanzas().

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varbuf_add_dir()

void varbuf_add_dir	(	struct varbuf *	v,
		const char *	dirname
	)

References buf, used, varbuf_add_char(), and varbuf_add_str.

Referenced by modstatdb_init(), pkg_infodb_foreach(), and pkg_infodb_get_file().

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varbuf_add_varbuf()

void varbuf_add_varbuf	(	struct varbuf *	v,
		const struct varbuf *	other
	)

References buf, used, and varbuf_grow().

Referenced by conffderef(), and dependencies_ok().

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varbuf_destroy()

void varbuf_destroy

(

struct varbuf *

v

)

References buf, size, and used.

Referenced by check_breaks(), check_conflict(), command_in_path(), compress_filter(), decompress_filter(), deferred_configure(), deferred_remove(), dependencies_ok(), describedepcon(), ensure_packagefiles_available(), modstatdb_done(), modstatdb_shutdown(), parse_filehash(), parsedb_close(), parsedb_parse(), pkg_format_print(), pkg_format_show(), pkg_infodb_foreach(), pkg_source_version(), setselections(), trigproc(), write_stanza(), and writedb_stanzas().

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varbuf_detach()

char * varbuf_detach

(

struct varbuf *

v

)

References buf, m_strdup(), size, and used.

Referenced by dpkg_get_pid_execname(), get_force_string(), and parsedb_load().

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varbuf_dup_char()

void varbuf_dup_char	(	struct varbuf *	v,
		int	c,
		size_t	n
	)

References buf, used, and varbuf_grow().

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varbuf_free()

void varbuf_free

(

struct varbuf *

v

)

References buf.

varbuf_grow()

void varbuf_grow	(	struct varbuf *	v,
		size_t	need_size
	)

References _, buf, internerr, m_realloc(), ohshit(), size, and used.

Referenced by file_getcwd(), file_readlink(), read_info(), varbuf_add_buf(), varbuf_add_char(), varbuf_add_varbuf(), varbuf_dup_char(), and varbuf_vprintf().

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varbuf_has_prefix()

bool varbuf_has_prefix	(	struct varbuf *	v,
		struct varbuf *	prefix
	)

References buf, and used.

Referenced by varbuf_trim_varbuf_prefix().

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varbuf_has_suffix()

bool varbuf_has_suffix	(	struct varbuf *	v,
		struct varbuf *	suffix
	)

References buf, and used.

varbuf_init()

void varbuf_init	(	struct varbuf *	v,
		size_t	size
	)

References buf, m_malloc(), size, and used.

Referenced by file_slurp(), modstatdb_init(), modstatdb_open(), and varbuf_new().

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varbuf_map_char()

void varbuf_map_char	(	struct varbuf *	v,
		int	c_src,
		int	c_dst
	)

References buf, and used.

Referenced by statusfd_send().

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varbuf_new()

struct varbuf * varbuf_new

(

size_t

size

)

References m_malloc(), size, and varbuf_init().

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varbuf_printf()

int varbuf_printf	(	struct varbuf *	v,
		const char *	fmt,
			...
	)

References args, and varbuf_vprintf().

Referenced by describedepcon(), modstatdb_checkpoint(), and varbufversion().

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varbuf_reset()

void varbuf_reset

(

struct varbuf *

v

)

References buf, and used.

Referenced by archivefiles(), commandfd(), dependencies_ok(), depisok(), file_getcwd(), file_readlink(), pkg_format_print(), pkg_infodb_get_file(), predeppackage(), read_info(), setselections(), statusfd_send(), trigproc(), varbuf_set_buf(), versiondescribe(), and writedb_stanzas().

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varbuf_rollback()

void varbuf_rollback

(

struct varbuf_state *

vs

)

References varbuf_state::used, varbuf_state::v, and varbuf_trunc().

Referenced by modstatdb_checkpoint(), pkg_infodb_foreach(), and setupfnamevbs().

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varbuf_rollback_len()

size_t varbuf_rollback_len

(

struct varbuf_state *

vs

)

References internerr, used, varbuf_state::used, and varbuf_state::v.

Referenced by modstatdb_checkpoint().

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varbuf_rollback_start()

const char * varbuf_rollback_start

(

struct varbuf_state *

vs

)

References buf, internerr, varbuf_state::used, varbuf_state::v, and varbuf_str().

Referenced by modstatdb_checkpoint().

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varbuf_set_buf()

void varbuf_set_buf	(	struct varbuf *	v,
		const void *	buf,
		size_t	size
	)

References buf, size, varbuf_add_buf(), and varbuf_reset().

Referenced by command_in_path(), f_dependency(), and varbuf_set_varbuf().

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varbuf_set_varbuf()

void varbuf_set_varbuf	(	struct varbuf *	v,
		struct varbuf *	other
	)

References buf, used, and varbuf_set_buf().

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varbuf_snapshot()

void varbuf_snapshot	(	struct varbuf *	v,
		struct varbuf_state *	vs
	)

References used, varbuf_state::used, and varbuf_state::v.

Referenced by archivefiles(), modstatdb_init(), and pkg_infodb_foreach().

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varbuf_str()

const char * varbuf_str

(

struct varbuf *

v

)

References buf.

Referenced by check_breaks(), check_conflict(), conffderef(), deferred_configure(), deferred_remove(), dependencies_ok(), pkg_format_print(), pkg_source_version(), setselections(), trigproc(), varbuf_rollback_start(), write_stanza(), and writedb_stanzas().

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varbuf_trim_char_prefix()

void varbuf_trim_char_prefix	(	struct varbuf *	v,
		int	prefix
	)

References buf, used, and varbuf_trunc().

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varbuf_trim_varbuf_prefix()

void varbuf_trim_varbuf_prefix	(	struct varbuf *	v,
		struct varbuf *	prefix
	)

References buf, used, varbuf_has_prefix(), and varbuf_trunc().

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varbuf_trunc()

void varbuf_trunc	(	struct varbuf *	v,
		size_t	used_size
	)

References buf, internerr, size, and used.

Referenced by conffderef(), file_getcwd(), file_readlink(), read_info(), varbuf_rollback(), varbuf_trim_char_prefix(), and varbuf_trim_varbuf_prefix().

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varbuf_vprintf()

int varbuf_vprintf	(	struct varbuf *	v,
		const char *	fmt,
		va_list	va
	)

References _, args, buf, ohshite(), used, and varbuf_grow().

Referenced by compress_filter(), decompress_filter(), log_message(), statusfd_send(), and varbuf_printf().

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