2 * DEBUG: section 84 Helper process maintenance
3 * AUTHOR: Harvest Derived?
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33 #ifndef SQUID_HELPER_H
34 #define SQUID_HELPER_H
38 #include "ip/IpAddress.h"
39 #include "HelperChildConfig.h"
43 typedef struct _helper_flags helper_flags
;
45 typedef struct _helper_stateful_flags helper_stateful_flags
;
47 typedef void HLPSCB(void *, void *lastserver
, char *buf
);
52 inline helper(const char *name
) : cmdline(NULL
), id_name(name
) {};
60 HelperChildConfig childs
; ///< Configuration settings for number running.
63 time_t last_queue_warn
;
74 CBDATA_CLASS2(helper
);
77 class statefulhelper
: public helper
80 inline statefulhelper(const char *name
) : helper(name
) {};
81 inline ~statefulhelper() {};
84 MemAllocator
*datapool
;
85 HLPSAVAIL
*IsAvailable
;
86 HLPSONEQ
*OnEmptyQueue
;
89 CBDATA_CLASS2(statefulhelper
);
93 * Fields shared between stateless and stateful helper servers.
95 class HelperServerBase
109 struct timeval dispatch_time
;
110 struct timeval answer_time
;
115 class helper_server
: public HelperServerBase
122 helper_request
**requests
;
124 struct _helper_flags
{
125 unsigned int writing
:1;
126 unsigned int closing
:1;
127 unsigned int shutdown
:1;
132 unsigned int pending
;
136 class helper_stateful_request
;
138 class helper_stateful_server
: public HelperServerBase
142 /* MemBuf writebuf; */
144 statefulhelper
*parent
;
145 helper_stateful_request
*request
;
147 struct _helper_stateful_flags
{
149 unsigned int closing
:1;
150 unsigned int shutdown
:1;
151 unsigned int reserved
:1;
159 void *data
; /* State data used by the calling routines */
166 MEMPROXY_CLASS(helper_request
);
171 struct timeval dispatch_time
;
174 MEMPROXY_CLASS_INLINE(helper_request
);
176 class helper_stateful_request
180 MEMPROXY_CLASS(helper_stateful_request
);
183 int placeholder
; /* if 1, this is a dummy request waiting for a stateful helper to become available */
187 MEMPROXY_CLASS_INLINE(helper_stateful_request
);
190 SQUIDCEXTERN
void helperOpenServers(helper
* hlp
);
191 SQUIDCEXTERN
void helperStatefulOpenServers(statefulhelper
* hlp
);
192 SQUIDCEXTERN
void helperSubmit(helper
* hlp
, const char *buf
, HLPCB
* callback
, void *data
);
193 SQUIDCEXTERN
void helperStatefulSubmit(statefulhelper
* hlp
, const char *buf
, HLPSCB
* callback
, void *data
, helper_stateful_server
* lastserver
);
194 SQUIDCEXTERN
void helperStats(StoreEntry
* sentry
, helper
* hlp
, const char *label
= NULL
);
195 SQUIDCEXTERN
void helperStatefulStats(StoreEntry
* sentry
, statefulhelper
* hlp
, const char *label
= NULL
);
196 SQUIDCEXTERN
void helperShutdown(helper
* hlp
);
197 SQUIDCEXTERN
void helperStatefulShutdown(statefulhelper
* hlp
);
198 SQUIDCEXTERN
void helperStatefulReleaseServer(helper_stateful_server
* srv
);
199 SQUIDCEXTERN
void *helperStatefulServerGetData(helper_stateful_server
* srv
);
202 #endif /* SQUID_HELPER_H */