src/array.h

   1 #ifndef ARRAY_H
   2 #define ARRAY_H
   3 #include "first.h"
   4
   5 #ifdef HAVE_PCRE_H
   6 # include <pcre.h>
   7 #endif
   8
   9 #include "buffer.h"
  10 #include "vector.h"
  11
  12 #include <stdlib.h>
  13
  14 #define DATA_IS_STRING(x) (x->type == TYPE_STRING)
  15
  16 typedef enum { TYPE_UNSET, TYPE_STRING, TYPE_COUNT, TYPE_ARRAY, TYPE_INTEGER, TYPE_FASTCGI, TYPE_CONFIG } data_type_t;
  17 #define DATA_UNSET \
  18         data_type_t type; \
  19         buffer *key; \
  20         int is_index_key; /* 1 if key is a array index (autogenerated keys) */ \
  21         struct data_unset *(*copy)(const struct data_unset *src); \
  22         void (* free)(struct data_unset *p); \
  23         void (* reset)(struct data_unset *p); \
  24         int (*insert_dup)(struct data_unset *dst, struct data_unset *src); \
  25         void (*print)(const struct data_unset *p, int depth)
  26
  27 typedef struct data_unset {
  28         DATA_UNSET;
  29 } data_unset;
  30
  31 typedef struct {
  32         data_unset  **data;
  33
  34         size_t *sorted;
  35
  36         size_t used; /* <= SSIZE_MAX */
  37         size_t size;
  38
  39         size_t unique_ndx;
  40 } array;
  41
  42 typedef struct {
  43         DATA_UNSET;
  44
  45         int count;
  46 } data_count;
  47
  48 data_count *data_count_init(void);
  49
  50 typedef struct {
  51         DATA_UNSET;
  52
  53         buffer *value;
  54 } data_string;
  55
  56 data_string *data_string_init(void);
  57 data_string *data_response_init(void);
  58
  59 typedef struct {
  60         DATA_UNSET;
  61
  62         array *value;
  63 } data_array;
  64
  65 data_array *data_array_init(void);
  66
  67 /**
  68  * possible compare ops in the configfile parser
  69  */
  70 typedef enum {
  71         CONFIG_COND_UNSET,
  72         CONFIG_COND_EQ,      /** == */
  73         CONFIG_COND_MATCH,   /** =~ */
  74         CONFIG_COND_NE,      /** != */
  75         CONFIG_COND_NOMATCH  /** !~ */
  76 } config_cond_t;
  77
  78 /**
  79  * possible fields to match against
  80  */
  81 typedef enum {
  82         COMP_UNSET,
  83         COMP_SERVER_SOCKET,
  84         COMP_HTTP_URL,
  85         COMP_HTTP_HOST,
  86         COMP_HTTP_REFERER,
  87         COMP_HTTP_USER_AGENT,
  88         COMP_HTTP_LANGUAGE,
  89         COMP_HTTP_COOKIE,
  90         COMP_HTTP_REMOTE_IP,
  91         COMP_HTTP_QUERY_STRING,
  92         COMP_HTTP_SCHEME,
  93         COMP_HTTP_REQUEST_METHOD,
  94
  95         COMP_LAST_ELEMENT
  96 } comp_key_t;
  97
  98 /* $HTTP["host"] ==    "incremental.home.kneschke.de" { ... }
  99  * for print:   comp_key      op    string
 100  * for compare: comp          cond  string/regex
 101  */
 102
 103 typedef struct data_config data_config;
 104 DEFINE_TYPED_VECTOR_NO_RELEASE(config_weak, data_config*);
 105
 106 struct data_config {
 107         DATA_UNSET;
 108
 109         array *value;
 110
 111         buffer *comp_key;
 112         comp_key_t comp;
 113
 114         config_cond_t cond;
 115         buffer *op;
 116
 117         int context_ndx; /* more or less like an id */
 118         vector_config_weak children;
 119         /* nested */
 120         data_config *parent;
 121         /* for chaining only */
 122         data_config *prev;
 123         data_config *next;
 124
 125         buffer *string;
 126 #ifdef HAVE_PCRE_H
 127         pcre   *regex;
 128         pcre_extra *regex_study;
 129 #endif
 130 };
 131
 132 data_config *data_config_init(void);
 133
 134 typedef struct {
 135         DATA_UNSET;
 136
 137         int value;
 138 } data_integer;
 139
 140 data_integer *data_integer_init(void);
 141
 142 typedef struct {
 143         DATA_UNSET;
 144
 145         buffer *host;
 146
 147         unsigned short port;
 148
 149         time_t disable_ts;
 150         int is_disabled;
 151         size_t balance;
 152
 153         int usage; /* fair-balancing needs the no. of connections active on this host */
 154         int last_used_ndx; /* round robin */
 155 } data_fastcgi;
 156
 157 data_fastcgi *data_fastcgi_init(void);
 158
 159 array *array_init(void);
 160 array *array_init_array(array *a);
 161 void array_free(array *a);
 162 void array_reset(array *a);
 163 void array_insert_unique(array *a, data_unset *entry);
 164 data_unset *array_pop(array *a); /* only works on "simple" lists with autogenerated keys */
 165 int array_print(array *a, int depth);
 166 data_unset *array_get_unused_element(array *a, data_type_t t);
 167 data_unset *array_get_element(array *a, const char *key);
 168 data_unset *array_extract_element(array *a, const char *key); /* removes found entry from array */
 169 void array_set_key_value(array *hdrs, const char *key, size_t key_len, const char *value, size_t val_len);
 170 void array_replace(array *a, data_unset *entry);
 171 int array_strcasecmp(const char *a, size_t a_len, const char *b, size_t b_len);
 172 void array_print_indent(int depth);
 173 size_t array_get_max_key_length(array *a);
 174
 175 #endif