diff options
| author | Pablo Neira Ayuso <pablo@gnumonks.org> | 2011-07-07 19:46:34 +0200 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2011-07-18 17:00:07 +0200 |
| commit | 39c0243d9b208a5d480be2e5cf538b3eac87860d (patch) | |
| tree | dc267c4fc3ef6747bf289dfbee9cecf0f851201e | |
| parent | ec4f160e2d51c8396f5fafff009fef93a1eeb113 (diff) | |
signal: reserve signal subsystems >= INT_MAX/2 for libraries
The first range (from 0 to INT_MAX/2) of signal subsystems can be
used by client applications while the second range (from INT_MAX)
is reserved for libraries.
This is useful to support signals defined in libraries that
may be used by different client applications.
| -rw-r--r-- | include/osmocom/core/signal.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/osmocom/core/signal.h b/include/osmocom/core/signal.h index 535fd185..7c32c778 100644 --- a/include/osmocom/core/signal.h +++ b/include/osmocom/core/signal.h @@ -1,6 +1,29 @@ #ifndef OSMO_SIGNAL_H #define OSMO_SIGNAL_H +#include <stdint.h> + +/* subsystem signaling numbers: we split the numberspace for applications and + * libraries: from 0 to UINT_MAX/2 for applications, from UINT_MAX/2 to + * UINT_MAX for libraries. */ +#define OSMO_SIGNAL_SS_APPS 0 +#define OSMO_SIGNAL_SS_RESERVED 2147483648 + +/* signal subsystems. */ +enum { + SS_GLOBAL = OSMO_SIGNAL_SS_RESERVED, + SS_INPUT, +}; + +/* application-defined signal types. */ +#define OSMO_SIGNAL_T_APPS 0 +#define OSMO_SIGNAL_T_RESERVED 2147483648 + +/* signal types. */ +enum { + S_GLOBAL_SHUTDOWN = OSMO_SIGNAL_T_RESERVED, +}; + typedef int osmo_signal_cbfn(unsigned int subsys, unsigned int signal, void *handler_data, void *signal_data); |