text: /*
    +----------------------------------------------------------------------+
    | APC                                                                  |
    +----------------------------------------------------------------------+
    | Copyright (c) 2006-2011 The PHP Group                                |
    +----------------------------------------------------------------------+
    | This source file is subject to version 3.01 of the PHP license,      |
    | that is bundled with this package in the file LICENSE, and is        |
    | available through the world-wide-web at the following url:           |
    | http://www.php.net/license/3_01.txt.                                 |
    | If you did not receive a copy of the PHP license and are unable to   |
    | obtain it through the world-wide-web, please send a note to          |
    | license@php.net so we can mail you a copy immediately.               |
    +----------------------------------------------------------------------+
    | Authors: Daniel Cowgill <dcowgill@communityconnect.com>              |
    |          George Schlossnagle <george@omniti.com>                     |
    |          Rasmus Lerdorf <rasmus@php.net>                             |
    |          Arun C. Murthy <arunc@yahoo-inc.com>                        |
    |          Gopal Vijayaraghavan <gopalv@yahoo-inc.com>                 |
    +----------------------------------------------------------------------+
  
     This software was contributed to PHP by Community Connect Inc. in 2002
     and revised in 2005 by Yahoo! Inc. to add support for PHP 5.1.
     Future revisions and derivatives of this source code must acknowledge
     Community Connect Inc. as the original contributor of this module by
     leaving this note intact in the source code.
  
     All other licensing and usage conditions are those of the PHP Group.
  
   */
  
  /* $Id: apc_globals.h 307215 2011-01-07 09:54:00Z gopalv $ */
  
  #ifndef APC_GLOBALS_H
  #define APC_GLOBALS_H
  
  #include "apc_cache.h"
  #include "apc_stack.h"
  #include "apc_php.h"
  #include "apc_main.h"
  
  /* {{{ struct apc_rfc1867_data */
  
  typedef struct _apc_rfc1867_data apc_rfc1867_data;
  
  struct _apc_rfc1867_data {
      char tracking_key[64];
      int  key_length;
      size_t content_length;
      char filename[128];
      char name[64];
      char *temp_filename;
      int cancel_upload;
      double start_time;
      size_t bytes_processed;
      size_t prev_bytes_processed;
      int update_freq;
      double rate;
      int started;
  };
  /* }}} */
  
  //#define ZEND_BEGIN_MODULE_GLOBALS(module_name)   typedef struct _zend_##module_name##_globals {
  ZEND_BEGIN_MODULE_GLOBALS(apc)
      /* configuration parameters */
      zend_bool enabled;      /* if true, apc is enabled (defaults to true) */
      long shm_segments;     //内存块个数 /* number of shared memory segments to use */
      long shm_size;         //每个内存块大小 /* size of each shared memory segment (in MB) */
      long num_files_hint;    /* parameter to apc_cache_create */
      long user_entries_hint;
      long gc_ttl;            /* parameter to apc_cache_create */
      long ttl;               /* parameter to apc_cache_create */
      long user_ttl;
  #if APC_MMAP
      char *mmap_file_mask;   /* mktemp-style file-mask to pass to mmap */
  #endif
      char** filters;         /* array of regex filters that prevent caching */
      void* compiled_filters; /* compiled regex filters */
  
      /* module variables */
      zend_bool initialized;       /* true if module was initialized */
      apc_stack_t* cache_stack;    /* the stack of cached executable code */
      zend_bool cache_by_default;  /* true if files should be cached unless filtered out */
                                   /* false if files should only be cached if filtered in */
      long file_update_protection; /* Age in seconds before a file is eligible to be cached - 0 to disable */
      zend_bool enable_cli;        /* Flag to override turning APC off for CLI */
      long max_file_size;          /* Maximum size of file, in bytes that APC will be allowed to cache */
      zend_bool fpstat;            /* true if fullpath includes should be stat'ed */
      zend_bool canonicalize;      /* true if relative paths should be canonicalized in no-stat mode */
      zend_bool stat_ctime;        /* true if ctime in addition to mtime should be checked */
      zend_bool write_lock;        /* true for a global write lock */
      zend_bool slam_defense;      /* true for user cache slam defense */ 
      zend_bool report_autofilter; /* true for auto-filter warnings */
      zend_bool include_once;      /* Override the ZEND_INCLUDE_OR_EVAL opcode handler to avoid pointless fopen()s [still experimental] */
      apc_optimize_function_t apc_optimize_function;   /* optimizer function callback */
  #ifdef MULTIPART_EVENT_FORMDATA
      zend_bool rfc1867;            /* Flag to enable rfc1867 handler */
      char* rfc1867_prefix;         /* Key prefix */
      char* rfc1867_name;           /* Name of hidden field to activate upload progress/key suffix */
      double rfc1867_freq;          /* Update frequency as percentage or bytes */
      long rfc1867_ttl;             /* TTL for rfc1867 entries */
      apc_rfc1867_data rfc1867_data;/* Per-request data */
  #endif
      HashTable copied_zvals;      /* my_copy recursion detection list */
      zend_bool force_file_update; /* force files to be updated during apc_compile_file */
      char canon_path[MAXPATHLEN]; /* canonical path for key data */
  #ifdef APC_FILEHITS
      zval *filehits;              /* Files that came from the cache for this request */
  #endif
      zend_bool coredump_unmap;    /* Trap signals that coredump and unmap shared memory */
      apc_cache_t *current_cache;  /* current cache being modified/read */
      char *preload_path;
      zend_bool file_md5;           /* record md5 hash of files */
      void *apc_bd_alloc_ptr;      /* bindump alloc() ptr */
      void *apc_bd_alloc_ubptr;    /* bindump alloc() upper bound ptr */
      HashTable apc_bd_alloc_list; /* bindump alloc() ptr list */
      zend_bool use_request_time;  /* use the SAPI request start time for TTL */
      zend_bool lazy_functions;        /* enable/disable lazy function loading */
      HashTable *lazy_function_table;  /* lazy function entry table */
      zend_bool lazy_classes;          /* enable/disable lazy class loading */
      HashTable *lazy_class_table;     /* lazy class entry table */
  #ifdef ZEND_ENGINE_2_4
      long shm_strings_buffer;
  #endif
      char *serializer_name;       /* the serializer config option */
      apc_serializer_t *serializer;/* the actual serializer in use */
  ZEND_END_MODULE_GLOBALS(apc)
  //#define ZEND_END_MODULE_GLOBALS(module_name)  }zend_##module_name##_globals;
  
  /* (the following declaration is defined in php_apc.c) */
  ZEND_EXTERN_MODULE_GLOBALS(apc)
  
  #ifdef ZTS
  # define APCG(v) TSRMG(apc_globals_id, zend_apc_globals *, v)
  #else
  # define APCG(v) (apc_globals.v)
  #endif
  
  /* True globals */
  //extern可置于变量或者函数前，以表示变量或者函数的定义在别的文件中，提示编译器遇到此变量或函数时，在其它模块中寻找其定义。另外，extern也可用来进行链接指定。
  extern apc_cache_t* apc_cache;       /* the global compiler cache */
  extern apc_cache_t* apc_user_cache;  /* the global user content cache */
  extern void* apc_compiled_filters;   /* compiled filters */
  
  #endif
  
  /*
   * Local variables:
   * tab-width: 4
   * c-basic-offset: 4
   * End:
   * vim>600: expandtab sw=4 ts=4 sts=4 fdm=marker
   * vim<600: expandtab sw=4 ts=4 sts=4
   */
  