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pippijn |
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/* |
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* Copyright © 2005 William Pitcock, et al. |
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pippijn |
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* The rights to this code are as documented in doc/pod/license.pod. |
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pippijn |
1.1 |
* |
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* This file contains data structures concerning modules. |
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* |
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pippijn |
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* $Id: module.h,v 1.1 2007-07-19 08:24:50 pippijn Exp $ |
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*/ |
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#ifndef MODULE_H |
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#define MODULE_H |
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#include "privs.h" |
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struct v1_moduleheader_t; |
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struct module_t |
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{ |
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char name[BUFSIZE]; |
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char modpath[BUFSIZE]; |
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v1_moduleheader_t *header; |
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unsigned int mflags; |
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void *address; |
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void *handle; |
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list_t dephost; |
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list_t deplist; |
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list_t symlist; /* MAPIv2 symbol dependencies. */ |
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}; |
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#define MODTYPE_STANDARD 0 |
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#define MODTYPE_CORE 1 /* Can't be unloaded. */ |
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#define MODTYPE_FAIL 0x8000 /* modinit failed */ |
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#define MAPI_MAGIC 0xdeadbeef |
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#define MAPI_V1 1 |
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#define MAX_CMD_PARC 20 |
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struct v1_moduleheader_t |
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{ |
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unsigned int mod; |
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unsigned int abi_ver; |
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char const *const name; |
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bool norestart; |
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void (*modinit) (module_t *m); |
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void (*deinit) (void); |
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char const *const vendor; |
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char const *const version; |
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}; |
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#define DECLARE_MODULE_V1(name, norestart, modinit, deinit, ver, ven) \ |
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v1_moduleheader_t _header = { \ |
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MAPI_MAGIC, \ |
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MAPI_V1, \ |
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name, \ |
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norestart, \ |
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modinit, \ |
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deinit, \ |
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ven, \ |
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ver \ |
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} |
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E void _modinit (module_t *m); |
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E void _moddeinit (void); |
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E void modules_init (void); |
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E module_t *module_load (char *filespec); |
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E void module_load_dir (char *dirspec); |
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E void module_load_dir_match (char *dirspec, char *pattern); |
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E void *module_locate_symbol (char *modname, char *sym); |
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E void module_unload (module_t *m); |
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E module_t *module_find (char *name); |
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E module_t *module_find_published (char *name); |
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/* Use this macro in your _modinit() function to use symbols from |
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* other modules. It will abort the _modinit() and unload your module |
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* without calling _moddeinit(). -- jilles */ |
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/* XXX this assumes the parameter is called m */ |
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#define MODULE_USE_SYMBOL_T(dest, type, modname, sym) \ |
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if ((dest = (type *)module_locate_symbol(modname, sym)) == NULL) \ |
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{ \ |
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m->mflags = MODTYPE_FAIL; \ |
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return; \ |
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} |
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#define MODULE_USE_SYMBOL(dest, modname, sym) \ |
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if ((dest = (list_t *)module_locate_symbol(modname, sym)) == NULL) \ |
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{ \ |
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m->mflags = MODTYPE_FAIL; \ |
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return; \ |
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} |
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#endif |
