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pass functions to plugins through struct, rather than relying on auto-exported functions from executable

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This commit is contained in:
Ron Pedde
2006-04-23 04:42:18 +00:00
parent c2c4bb1542
commit e2fd480c78
3 changed files with 136 additions and 41 deletions
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80
src/plugins/mtd-plugins.h
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@@ -12,8 +12,14 @@
#define PLUGIN_VERSION 1
struct tag_wsconninfo;
typedef struct tag_wsconninfo WS_CONNINFO;
typedef void* PARSETREE;
struct tag_ws_conninfo;
typedef struct tag_ws_conninfo WS_CONNINFO;
struct tag_xmlstruct;
typedef struct tag_xmlstruct XMLSTRUCT;
typedef struct tag_plugin_output_fn {
void (*handler)(WS_CONNINFO *pwsc);
@@ -25,31 +31,10 @@ typedef struct tag_plugin_info {
char *server;
char *url; /* regex of namespace to handle if OUTPUT type */
void *handler_functions;
void *input_functions;
} PLUGIN_INFO;
/* these are the functions that must be exported by the plugin */
PLUGIN_INFO *plugin_info(void);
/* xml helpers for output plugins */
struct tag_xmlstruct;
typedef struct tag_xmlstruct XMLSTRUCT;
typedef void *PARSETREE;
extern XMLSTRUCT *pi_xml_init(WS_CONNINFO *pwsc, int emit_header);
extern void pi_xml_push(XMLSTRUCT *pxml, char *term);
extern void pi_xml_pop(XMLSTRUCT *pxml);
extern void pi_xml_output(XMLSTRUCT *pxml, char *section, char *fmt, ...);
extern void pi_xml_deinit(XMLSTRUCT *pxml);
/* webserver helpers for output plugins */
extern char *pi_ws_uri(WS_CONNINFO *pwsc);
extern void pi_ws_close(WS_CONNINFO *pwsc);
extern int pi_ws_returnerror(WS_CONNINFO *pwsc, int error, char *description);
extern char *pi_ws_getvar(WS_CONNINFO *pwsc, char *var);
/* misc helpers */
extern char *pi_server_ver(void);
extern int pi_server_name(char *, int *);
/* logging */
#define E_FATAL 0
@@ -57,10 +42,6 @@ extern int pi_server_name(char *, int *);
#define E_INF 5
#define E_DBG 9
void pi_log(int level, char *fmt, ...);
/* db stuff */
typedef enum {
queryTypeItems,
@@ -165,19 +146,40 @@ typedef struct tag_dbqueryinfo {
void *output_info;
} DBQUERYINFO;
typedef struct tag_plugin_input_fn {
/* xml helpers */
XMLSTRUCT* (*xml_init)(WS_CONNINFO *, int);
void (*xml_push)(XMLSTRUCT *, char *);
void (*xml_pop)(XMLSTRUCT *);
void (*xml_output)(XMLSTRUCT *, char *, char *, ...);
void (*xml_deinit)(XMLSTRUCT *);
/* db helpers */
extern int pi_db_count(void);
extern int pi_db_enum_start(char **pe, DBQUERYINFO *pinfo);
extern int pi_db_enum_fetch_row(char **pe, char ***row, DBQUERYINFO *pinfo);
extern int pi_db_enum_end(char **pe);
extern void pi_stream(WS_CONNINFO *pwsc, DBQUERYINFO *pqi, char *id);
/* webserver helpers */
char* (*ws_uri)(WS_CONNINFO *);
void (*ws_close)(WS_CONNINFO *);
int (*ws_returnerror)(WS_CONNINFO *, int, char *);
char* (*ws_getvar)(WS_CONNINFO *, char *);
/* smart parser helpers */
extern PARSETREE pi_sp_init(void);
extern int pi_sp_parse(PARSETREE tree, char *term);
extern int pi_sp_dispose(PARSETREE tree);
extern char *pi_sp_get_error(PARSETREE tree);
/* misc helpers */
char* (*server_ver)(void);
int (*server_name)(char *, int *);
void (*log)(int, char *, ...);
int (*db_count)(void);
int (*db_enum_start)(char **, DBQUERYINFO *);
int (*db_enum_fetch_row)(char **, char ***, DBQUERYINFO *);
int (*db_enum_end)(char **);
void (*stream)(WS_CONNINFO *, DBQUERYINFO *, char *);
PARSETREE (*sp_init)(void);
int (*sp_parse)(PARSETREE tree, char *term);
int (*sp_dispose)(PARSETREE tree);
char* (*sp_get_error)(PARSETREE tree);
} PLUGIN_INPUT_FN;
/* these are the functions that must be exported by the plugin */
PLUGIN_INFO *plugin_info(void);
#endif /* _MTD_PLUGINS_H_ */