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Add function to pass libmicrohttpd options when starting Prometheus listener #68

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Add function to pass libmicrohttpd options when starting Prometheus listener #68

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13 changes: 13 additions & 0 deletions promhttp/include/promhttp.h
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Original file line number Diff line number Diff line change
Expand Up @@ -46,3 +46,16 @@ void promhttp_set_active_collector_registry(prom_collector_registry_t *active_re
*/
struct MHD_Daemon *promhttp_start_daemon(unsigned int flags, unsigned short port, MHD_AcceptPolicyCallback apc,
void *apc_cls);

/**
* @brief Starts a daemon in the background and returns a pointer to an MHD_Daemon.
*
* This is the same as promhttp_start_daemon(), except it allows applications
* to pass options to MHD_start_daemon() directly.
*
* @return struct MHD_Daemon*
*/
struct MHD_Daemon *promhttp_start_daemon_with_options(unsigned int flags, unsigned short port,
MHD_AcceptPolicyCallback apc,
void *apc_cls, ...);

20 changes: 20 additions & 0 deletions promhttp/src/promhttp.c
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
*/

#include <string.h>
#include <stdarg.h>

#include "microhttpd.h"
#include "prom.h"
Expand Down Expand Up @@ -63,3 +64,22 @@ struct MHD_Daemon *promhttp_start_daemon(unsigned int flags, unsigned short port
void *apc_cls) {
return MHD_start_daemon(flags, port, apc, apc_cls, &promhttp_handler, NULL, MHD_OPTION_END);
}

static struct MHD_Daemon *promhttp_start_daemon_with_options_va(unsigned int flags, unsigned short port,
MHD_AcceptPolicyCallback apc,
void *apc_cls, va_list ap) {
return MHD_start_daemon_va(flags, port, apc, apc_cls, &promhttp_handler, NULL, ap);
}

struct MHD_Daemon *promhttp_start_daemon_with_options(unsigned int flags, unsigned short port,
MHD_AcceptPolicyCallback apc,
void *apc_cls, ...) {
va_list ap;
struct MHD_Daemon *ret;

va_start(ap, apc_cls);
ret = promhttp_start_daemon_with_options_va(flags, port, apc, apc_cls, ap);
va_end(ap);

return ret;
}