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/* |
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* libetp implementation |
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* |
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* Copyright (c) 2007,2008,2009,2010,2011,2012,2013,2014,2015 Marc Alexander Lehmann <libetp@schmorp.de> |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without modifica- |
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* tion, are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright notice, |
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* this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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* OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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* Alternatively, the contents of this file may be used under the terms of |
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* the GNU General Public License ("GPL") version 2 or any later version, |
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* in which case the provisions of the GPL are applicable instead of |
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* the above. If you wish to allow the use of your version of this file |
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* only under the terms of the GPL and not to allow others to use your |
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* version of this file under the BSD license, indicate your decision |
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* by deleting the provisions above and replace them with the notice |
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* and other provisions required by the GPL. If you do not delete the |
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* provisions above, a recipient may use your version of this file under |
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* either the BSD or the GPL. |
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*/ |
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#ifndef ETP_H_ |
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#define ETP_H_ |
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#include <sys/types.h> |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#ifndef ETP_REQ_MBMERS |
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#define ETP_REQ_MBMERS |
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#endif |
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#ifndef ETP_API_DECL |
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#define ETP_API_DECL |
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#endif |
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#ifndef ETP_REQ |
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#define ETP_REQ struct etp_req |
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#endif |
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/* request priorities */ |
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enum { |
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ETP_PRI_MIN = -4, |
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ETP_PRI_MAX = 4, |
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ETP_PRI_DEFAULT = 0 |
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}; |
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/* request types - custom types have to start at ETP_TYPE_START */ |
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enum { |
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ETP_TYPE_QUIT = 0, |
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ETP_TYPE_GROUP = 1, |
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ETP_TYPE_START = 2 |
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}; |
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struct etp_req |
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{ |
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ETP_REQ volatile *next; /* private */ |
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ETP_REQ_MEMBERS |
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unsigned char flags; /* reserved */ |
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signed char type;/* ETP_xxx constant */ |
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signed char pri; /* the priority */ |
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#if __i386 || __amd64 |
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unsigned char cancelled; /* ETP */ |
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#else |
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sig_atomic_t cancelled; /* ETP */ |
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#endif |
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int size; /* private */ |
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ETP_REQ *grp, *grp_prev, *grp_next, *grp_first; /* private */ |
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}; |
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/* true if the request was cancelled, useful in the invoke callback */ |
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#define ETP_CANCELLED(req) ((req)->cancelled) |
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typedef struct etp_pool *etp_pool; |
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ETP_API_DECL unsigned int etp_nreqs (etp_pool pool); |
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ETP_API_DECL unsigned int etp_nready (etp_pool pool); |
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ETP_API_DECL unsigned int etp_npending (etp_pool pool); |
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ETP_API_DECL unsigned int etp_nthreads (etp_pool pool); |
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ETP_API_DECL int etp_init (etp_pool pool, void *userdata, void (*want_poll)(void *userdata), void (*done_poll)(void *userdata)); |
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ETP_API_DECL int etp_poll (etp_pool pool); |
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ETP_API_DECL void etp_grp_cancel (etp_pool pool, ETP_REQ *grp); |
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ETP_API_DECL void etp_cancel (etp_pool pool, ETP_REQ *req); |
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ETP_API_DECL void etp_grp_cancel (etp_pool pool, ETP_REQ *grp); |
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ETP_API_DECL void etp_submit (etp_pool pool, ETP_REQ *req); |
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ETP_API_DECL void ecb_cold etp_set_max_poll_time (etp_pool pool, double nseconds); |
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ETP_API_DECL void ecb_cold etp_set_max_poll_reqs (etp_pool pool, unsigned int maxreqs); |
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ETP_API_DECL void ecb_cold etp_set_max_idle (etp_pool pool, unsigned int nthreads); |
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ETP_API_DECL void ecb_cold etp_set_idle_timeout (etp_pool pool, unsigned int seconds); |
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ETP_API_DECL void ecb_cold etp_set_min_parallel (etp_pool pool, unsigned int nthreads); |
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ETP_API_DECL void ecb_cold etp_set_max_parallel (etp_pool pool, unsigned int nthreads); |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif |
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