ref: ec1c1b9b52632a5af59f37c1330573b78775cce1
dir: /sys/src/cmd/rc/exec.h/
/* * Definitions used in the interpreter */ extern void Xappend(void), Xasync(void), Xbackq(void), Xbang(void), Xclose(void); extern void Xconc(void), Xcount(void), Xdelfn(void), Xdol(void), Xqw(void), Xdup(void); extern void Xexit(void), Xfalse(void), Xfn(void), Xfor(void), Xglob(void); extern void Xjump(void), Xmark(void), Xmatch(void), Xpipe(void), Xread(void); extern void Xrdwr(void); extern void Xrdfn(void), Xunredir(void), Xstar(void), Xreturn(void), Xsubshell(void); extern void Xtrue(void), Xword(void), Xglobs(void), Xwrite(void), Xpipefd(void), Xcase(void); extern void Xlocal(void), Xunlocal(void), Xassign(void), Xsimple(void), Xpopm(void); extern void Xrdcmds(void), Xwastrue(void), Xif(void), Xifnot(void), Xpipewait(void); extern void Xdelhere(void), Xpopredir(void), Xsub(void), Xeflag(void), Xsettrue(void); extern void Xerror(char*); extern void Xerror1(char*); /* * word lists are in correct order, * i.e. word0->word1->word2->word3->0 */ struct word{ char *word; word *next; int glob; /* Globsize(word) */ }; struct list{ word *words; list *next; }; word *newword(char *, word *), *copywords(word *, word *); struct redir{ char type; /* what to do */ short from, to; /* what to do it to */ struct redir *next; /* what else to do (reverse order) */ }; #define NSTATUS ERRMAX /* length of status (from plan 9) */ /* * redir types */ #define ROPEN 1 /* dup2(from, to); close(from); */ #define RDUP 2 /* dup2(from, to); */ #define RCLOSE 3 /* close(from); */ struct thread{ union code *code; /* code for this thread */ int pc; /* code[pc] is the next instruction */ struct list *argv; /* argument stack */ struct redir *redir; /* redirection stack */ struct redir *startredir; /* redir inheritance point */ struct var *local; /* list of local variables */ char *cmdfile; /* file name in Xrdcmd */ struct io *cmdfd; /* file descriptor for Xrdcmd */ int iflast; /* static `if not' checking */ int eof; /* is cmdfd at eof? */ int iflag; /* interactive? */ int lineno; /* linenumber */ int pid; /* process for Xpipewait to wait for */ char status[NSTATUS]; /* status for Xpipewait */ tree *treenodes; /* tree nodes created by this process */ thread *ret; /* who continues when this finishes */ }; thread *runq; code *codecopy(code*); code *codebuf; /* compiler output */ int ntrap; /* number of outstanding traps */ int trap[NSIG]; /* number of outstanding traps per type */ struct builtin{ char *name; void (*fnc)(void); }; extern struct builtin Builtin[]; int eflagok; /* kludge flag so that -e doesn't exit in startup */ void execcd(void), execwhatis(void), execeval(void), execexec(void); int execforkexec(void); void execexit(void), execshift(void); void execwait(void), execumask(void), execdot(void), execflag(void); void execfunc(var*), execcmds(io *);