git.m6w6.name Git - m6w6/ext-psi/blob - src/data.h

   1 /*******************************************************************************
   2  Copyright (c) 2016, Michael Wallner <mike@php.net>.
   3  All rights reserved.
   4
   5  Redistribution and use in source and binary forms, with or without
   6  modification, are permitted provided that the following conditions are met:
   7
   8      * Redistributions of source code must retain the above copyright notice,
   9        this list of conditions and the following disclaimer.
  10      * Redistributions in binary form must reproduce the above copyright
  11        notice, this list of conditions and the following disclaimer in the
  12        documentation and/or other materials provided with the distribution.
  13
  14  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  15  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  17  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
  18  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  20  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  21  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  22  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24 *******************************************************************************/
  25
  26 #ifndef PSI_DATA_H
  27 #define PSI_DATA_H
  28
  29 #include "types.h"
  30 #include "error.h"
  31 #include "plist.h"
  32 #include "validate.h"
  33
  34 #include <stdarg.h>
  35 #include <dlfcn.h>
  36 #include <unistd.h>
  37
  38 #define PSI_DEBUG 0x1
  39 #define PSI_SILENT 0x2
  40
  41 #ifndef RTLD_NEXT
  42 # define RTLD_NEXT ((void *) -1l)
  43 #endif
  44 #ifndef RTLD_DEFAULT
  45 # define RTLD_DEFAULT ((void *) 0)
  46 #endif
  47
  48 #if PSI_THREADED_PARSER
  49 zend_string *psi_string_init_interned(const char *buf, size_t len, int p);
  50 zend_string *psi_new_interned_string(zend_string *str);
  51 #else
  52 # define psi_string_init_interned zend_string_init_interned
  53 # define psi_new_interned_string zend_new_interned_string
  54 #endif
  55
  56 static inline void *psi_dlsym(struct psi_plist *dllist, const char *name, const char *redir)
  57 {
  58         void *dl, *sym = NULL;
  59         const char *test = redir ?: name;
  60
  61 again:
  62         if (dllist) {
  63                 size_t i = 0;
  64
  65                 while (!sym && psi_plist_get(dllist, i++, &dl)) {
  66                         sym = dlsym(dl, test);
  67                 }
  68         }
  69         if (!sym) {
  70                 sym = dlsym(RTLD_DEFAULT, test);
  71         }
  72         if (!sym && test == redir) {
  73                 test = name;
  74                 goto again;
  75         }
  76
  77         return sym;
  78 }
  79
  80 #define PSI_DEBUG_PRINT(ctx, ...) do { \
  81         if ((ctx) && (PSI_DATA(ctx)->flags & PSI_DEBUG)) { \
  82                 dprintf(PSI_DATA(ctx)->debug_fd, __VA_ARGS__); \
  83         } \
  84 } while(0)
  85 #define PSI_DEBUG_PRINTV(ctx, msg, argv) do { \
  86         if ((ctx) && (PSI_DATA(ctx)->flags & PSI_DEBUG)) { \
  87                 vdprintf(PSI_DATA(ctx)->debug_fd, msg, argv); \
  88         } \
  89 } while(0)
  90 #define PSI_DEBUG_DUMP(ctx, dump_func, ...) do { \
  91         if ((ctx) && (PSI_DATA(ctx)->flags & PSI_DEBUG)) { \
  92                 struct psi_dump dump_ = {{ .fd = PSI_DATA(ctx)->debug_fd}, \
  93                                 .fun = (psi_dump_cb) dprintf}; \
  94                 dump_func(&dump_, __VA_ARGS__); \
  95         } \
  96 } while (0)
  97
  98 union psi_dump_arg {
  99         void *hn;
 100         int fd;
 101 };
 102 typedef int (*psi_dump_cb)(union psi_dump_arg, const char *msg, ...);
 103 struct psi_dump {
 104         union psi_dump_arg ctx;
 105         psi_dump_cb fun;
 106 };
 107 #define PSI_DUMP(dump, ...) do { \
 108         struct psi_dump _dump_tmp, *_dump_ptr = dump; \
 109         if (!_dump_ptr) { \
 110                 _dump_ptr = &_dump_tmp; \
 111                 _dump_tmp.ctx.fd = STDOUT_FILENO; \
 112                 _dump_tmp.fun = (psi_dump_cb) dprintf; \
 113         } \
 114         _dump_ptr->fun(_dump_ptr->ctx, __VA_ARGS__); \
 115 } while(0)
 116
 117 #define PSI_DATA(D) ((struct psi_data *) (D))
 118
 119 #define PSI_DATA_MEMBERS \
 120         struct psi_decl_file file; \
 121         struct psi_plist *consts; \
 122         struct psi_plist *types; \
 123         struct psi_plist *structs; \
 124         struct psi_plist *unions; \
 125         struct psi_plist *enums; \
 126         struct psi_plist *decls; \
 127         struct psi_plist *vars; \
 128         struct psi_plist *impls; \
 129         psi_error_cb error; \
 130         char last_error[0x1000]; \
 131         unsigned errors; \
 132         unsigned flags; \
 133         int debug_fd
 134
 135 struct psi_data {
 136         PSI_DATA_MEMBERS;
 137 };
 138
 139 struct psi_data *psi_data_ctor(struct psi_data *data, psi_error_cb error, unsigned flags);
 140 struct psi_data *psi_data_ctor_with_dtors(struct psi_data *data, psi_error_cb error, unsigned flags);
 141 struct psi_data *psi_data_exchange(struct psi_data *dest, struct psi_data *src);
 142 void psi_data_dtor(struct psi_data *data);
 143 void psi_data_dump(struct psi_dump *dump, struct psi_data *data);
 144
 145 #endif