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└─⟦ce621b962⟧ Bits:30004623 Controller Environment R. 1.2 (5.25 inch)
└─⟦ce621b962⟧ UNIX Filesystem
└─⟦8b2483275⟧ »CTENV.ISC/new/usr/include/sys/csem.h.Z«
└─⟦8b2483275⟧ »CTENV.SCO/new/usr/include/sys/csem.h.Z«
└─⟦e03896eec⟧ Bits:30004624 Controller Environment R. 1.2 (3.5 inch)
└─⟦e03896eec⟧ UNIX Filesystem
└─⟦8b2483275⟧ »CTENV.ISC/new/usr/include/sys/csem.h.Z«
└─⟦8b2483275⟧ »CTENV.SCO/new/usr/include/sys/csem.h.Z«
└─⟦this⟧
#ident "@(#)csem.h 1.1 - 91/05/02"
/* csem.h 87.03.26 */
/* merge 86.01.13 jenh */
/* rctypes.h 85.02.11 */
/* rcparams.h 85.02.21 */
/* 86.01.14 unnamed semaphores */
/* 86.06.10 release 4.0 */
/* 87.03.24 moved from rc39 to xyz */
/* 87.03.26 split into chain.h, csem.h, imc.h */
/* 89.02.29 added PRISEM */
#define PRISEM 26
#define CSNAMESIZE 8
struct chain_sem {
struct chain chain;
short cs_bcnt; /* Number of buffers in chain */
short cs_bufcount; /* # of waiting procs or # of bufs */
short cs_pid; /* Creator */
short cs_state;
short cs_pcnt;
union { struct chain a_chain[2];
struct { struct chain w_chain,
s_chain;
} e_chain;
} u_chain;
struct buf *cs_bfirst,
*cs_blast;
};
struct name_sem {
struct chain_sem ns_sem;
char ns_name[CSNAMESIZE];
};
#define cs_wchain u_chain.e_chain.w_chain
#define cs_schain u_chain.e_chain.s_chain
#define cs_achain u_chain.a_chain
#define WCH 0
#define SCH 1
/* flags in lp_flag */
#define SEMFLAG 0x8000
#define WAITFLAG 0x4000
#define IMCFLAG 0x2000
#define STARTFLAG 0x0800