git.m6w6.name Git - m6w6/ext-http/blob - phpstr/phpstr.h

   1
   2 /* $Id$ */
   3
   4 #ifndef _PHPSTR_H_
   5 #define _PHPSTR_H_
   6
   7 #include "php.h"
   8
   9 #ifndef PHPSTR_DEFAULT_SIZE
  10 #       define PHPSTR_DEFAULT_SIZE 256
  11 #endif
  12
  13 #ifndef STR_SET
  14 #       define STR_SET(STR, SET) \
  15         { \
  16                 STR_FREE(STR); \
  17                 STR = SET; \
  18         }
  19 #endif
  20
  21 #if defined(PHP_WIN32)
  22 #       if defined(PHPSTR_EXPORTS)
  23 #               define PHPSTR_API __declspec(dllexport)
  24 #       elif defined(COMPILE_DL_PHPSTR)
  25 #               define PHPSTR_API __declspec(dllimport)
  26 #       else
  27 #               define PHPSTR_API
  28 #       endif
  29 #else
  30 #       define PHPSTR_API
  31 #endif
  32
  33 #define PHPSTR(p) ((phpstr *) (p))
  34 #define PHPSTR_VAL(p) (PHPSTR(p))->data
  35 #define PHPSTR_LEN(p) (PHPSTR(p))->used
  36
  37 #define FREE_PHPSTR_PTR(STR) pefree(STR, STR->pmem)
  38 #define FREE_PHPSTR_VAL(STR) phpstr_dtor(STR)
  39 #define FREE_PHPSTR_ALL(STR) phpstr_free(&(STR))
  40 #define FREE_PHPSTR(free, STR) \
  41         switch (free) \
  42         { \
  43                 case PHPSTR_FREE_NOT:                                                   break; \
  44                 case PHPSTR_FREE_PTR:   pefree(STR, STR->pmem); break; \
  45                 case PHPSTR_FREE_VAL:   phpstr_dtor(STR);               break; \
  46                 case PHPSTR_FREE_ALL: \
  47                 { \
  48                         phpstr *PTR = (STR); \
  49                         phpstr_free(&PTR); \
  50                 } \
  51                 break; \
  52                 default:                                                                                break; \
  53         }
  54
  55 #define RETURN_PHPSTR_PTR(STR) RETURN_PHPSTR((STR), PHPSTR_FREE_PTR, 0)
  56 #define RETURN_PHPSTR_VAL(STR) RETURN_PHPSTR((STR), PHPSTR_FREE_NOT, 0)
  57 #define RETURN_PHPSTR_DUP(STR) RETURN_PHPSTR((STR), PHPSTR_FREE_NOT, 1)
  58 #define RETVAL_PHPSTR_PTR(STR) RETVAL_PHPSTR((STR), PHPSTR_FREE_PTR, 0)
  59 #define RETVAL_PHPSTR_VAL(STR) RETVAL_PHPSTR((STR), PHPSTR_FREE_NOT, 0)
  60 #define RETVAL_PHPSTR_DUP(STR) RETVAL_PHPSTR((STR), PHPSTR_FREE_NOT, 1)
  61 /* RETURN_PHPSTR(buf, PHPSTR_FREE_PTR, 0) */
  62 #define RETURN_PHPSTR(STR, free, dup) \
  63         RETVAL_PHPSTR((STR), (free), (dup)); \
  64         return;
  65
  66 #define RETVAL_PHPSTR(STR, free, dup) \
  67         phpstr_fix(STR); \
  68         RETVAL_STRINGL((STR)->data, (STR)->used, (dup)); \
  69         FREE_PHPSTR((free), (STR));
  70
  71 typedef struct _phpstr_t {
  72         char  *data;
  73         size_t used;
  74         size_t free;
  75         size_t size;
  76         unsigned pmem:1;
  77         unsigned reserved:31;
  78 } phpstr;
  79
  80 typedef enum _phpstr_free_t {
  81         PHPSTR_FREE_NOT = 0,
  82         PHPSTR_FREE_PTR,        /* pefree() */
  83         PHPSTR_FREE_VAL,        /* phpstr_dtor() */
  84         PHPSTR_FREE_ALL         /* phpstr_free() */
  85 } phpstr_free_t;
  86
  87 #define PHPSTR_ALL_FREE(STR) PHPSTR_FREE_ALL,(STR)
  88 #define PHPSTR_PTR_FREE(STR) PHPSTR_FREE_PTR,(STR)
  89 #define PHPSTR_VAL_FREE(STR) PHPSTR_FREE_VAL,(STR)
  90 #define PHPSTR_NOT_FREE(STR) PHPSTR_FREE_NOT,(STR)
  91
  92 #define PHPSTR_INIT_PREALLOC    0x01
  93 #define PHPSTR_INIT_PERSISTENT  0x02
  94
  95 /* create a new phpstr */
  96 #define phpstr_new() phpstr_init(NULL)
  97 #define phpstr_init(b) phpstr_init_ex(b, PHPSTR_DEFAULT_SIZE, 0)
  98 #define phpstr_clone(phpstr_pointer) phpstr_init_ex(NULL, (phpstr_pointer)->size, (phpstr_pointer)->pmem ? PHPSTR_INIT_PERSISTENT:0)
  99 PHPSTR_API phpstr *phpstr_init_ex(phpstr *buf, size_t chunk_size, int flags);
 100
 101 /* create a phpstr from a zval or c-string */
 102 #define phpstr_from_zval(z) phpstr_from_string(Z_STRVAL(z), Z_STRLEN(z))
 103 #define phpstr_from_zval_ex(b, z) phpstr_from_string_ex(b, Z_STRVAL(z), Z_STRLEN(z))
 104 #define phpstr_from_string(s, l) phpstr_from_string_ex(NULL, (s), (l))
 105 PHPSTR_API phpstr *phpstr_from_string_ex(phpstr *buf, const char *string, size_t length);
 106
 107 /* usually only called from within the internal functions */
 108 #define phpstr_resize(b, s) phpstr_resize_ex((b), (s), 0)
 109 PHPSTR_API size_t phpstr_resize_ex(phpstr *buf, size_t len, size_t override_size);
 110
 111 /* shrink memory chunk to actually used size (+1) */
 112 PHPSTR_API size_t phpstr_shrink(phpstr *buf);
 113
 114 /* append data to the phpstr */
 115 #define phpstr_appends(b, a) phpstr_append((b), (a), sizeof(a)-1)
 116 #define phpstr_appendl(b, a) phpstr_append((b), (a), strlen(a))
 117 PHPSTR_API size_t phpstr_append(phpstr *buf, const char *append, size_t append_len);
 118 PHPSTR_API size_t phpstr_appendf(phpstr *buf, const char *format, ...) PHP_ATTRIBUTE_FORMAT(printf, 2, 3);
 119
 120 /* insert data at a specific position of the phpstr */
 121 #define phpstr_inserts(b, i, o) phpstr_insert((b), (i), sizeof(i)-1, (o))
 122 #define phpstr_insertl(b, i, o) phpstr_insert((b), (i), strlen(i), (o))
 123 PHPSTR_API size_t phpstr_insert(phpstr *buf, const char *insert, size_t insert_len, size_t offset);
 124 PHPSTR_API size_t phpstr_insertf(phpstr *buf, size_t offset, const char *format, ...) PHP_ATTRIBUTE_FORMAT(printf, 3, 4);
 125
 126 /* prepend data */
 127 #define phpstr_prepends(b, p) phpstr_prepend((b), (p), sizeof(p)-1)
 128 #define phpstr_prependl(b, p) phpstr_prepend((b), (p), strlen(p))
 129 PHPSTR_API size_t phpstr_prepend(phpstr *buf, const char *prepend, size_t prepend_len);
 130 PHPSTR_API size_t phpstr_prependf(phpstr *buf, const char *format, ...) PHP_ATTRIBUTE_FORMAT(printf, 2, 3);
 131
 132 /* get a zero-terminated string */
 133 PHPSTR_API char *phpstr_data(const phpstr *buf, char **into, size_t *len);
 134
 135 /* get a part of the phpstr */
 136 #define phpstr_mid(b, o, l) phpstr_sub((b), (o), (l))
 137 #define phpstr_left(b, l) phpstr_sub((b), 0, (l))
 138 PHPSTR_API phpstr *phpstr_right(const phpstr *buf, size_t length);
 139 PHPSTR_API phpstr *phpstr_sub(const phpstr *buf, size_t offset, size_t len);
 140
 141 /* remove a substring */
 142 PHPSTR_API size_t phpstr_cut(phpstr *buf, size_t offset, size_t length);
 143
 144 /* get a complete phpstr duplicate */
 145 PHPSTR_API phpstr *phpstr_dup(const phpstr *buf);
 146
 147 /* merge several phpstr objects
 148    use like:
 149
 150         phpstr *final = phpstr_merge(3,
 151                 PHPSTR_NOT_FREE(&keep),
 152                 PHPSTR_ALL_FREE(middle_ptr),
 153                 PHPSTR_VAL_FREE(&local);
 154 */
 155 PHPSTR_API phpstr *phpstr_merge(unsigned argc, ...);
 156 PHPSTR_API phpstr *phpstr_merge_ex(phpstr *buf, unsigned argc, ...);
 157 PHPSTR_API phpstr *phpstr_merge_va(phpstr *buf, unsigned argc, va_list argv);
 158
 159 /* sets a trailing NUL byte */
 160 PHPSTR_API phpstr *phpstr_fix(phpstr *buf);
 161
 162 /* memcmp for phpstr objects */
 163 PHPSTR_API int phpstr_cmp(phpstr *left, phpstr *right);
 164
 165 /* reset phpstr object */
 166 PHPSTR_API void phpstr_reset(phpstr *buf);
 167
 168 /* free a phpstr objects contents */
 169 PHPSTR_API void phpstr_dtor(phpstr *buf);
 170
 171 /* free a phpstr object completely */
 172 PHPSTR_API void phpstr_free(phpstr **buf);
 173
 174 /* stores data in a phpstr until it reaches chunk_size */
 175 PHPSTR_API size_t phpstr_chunk_buffer(phpstr **s, const char *data, size_t data_len, char **chunk, size_t chunk_size);
 176
 177 typedef void (*phpstr_passthru_func)(void *opaque, const char *, size_t TSRMLS_DC);
 178
 179 /* wrapper around phpstr_chunk_buffer, which passes available chunks to passthru() */
 180 PHPSTR_API void phpstr_chunked_output(phpstr **s, const char *data, size_t data_len, size_t chunk_size, phpstr_passthru_func passthru, void *opaque TSRMLS_DC);
 181
 182 #endif
 183
 184
 185 /*
 186  * Local variables:
 187  * tab-width: 4
 188  * c-basic-offset: 4
 189  * End:
 190  * vim600: sw=4 ts=4 fdm=marker
 191  * vim<600: sw=4 ts=4
 192  */