Graphviz: lib/gvpr/gvpr.c File Reference

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#include "builddate.h"
#include <assert.h>
#include <ast/error.h>
#include <cgraph/cgraph.h>
#include <cgraph/ingraphs.h>
#include <common/globals.h>
#include <getopt.h>
#include <gvpr/actions.h>
#include <gvpr/compile.h>
#include <gvpr/gprstate.h>
#include <gvpr/gvpr.h>
#include <setjmp.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <util/agxbuf.h>
#include <util/alloc.h>
#include <util/exit.h>
#include <util/gv_ctype.h>
#include <util/gv_find_me.h>
#include <util/list.h>
#include <util/path.h>
#include <util/unreachable.h>

Include dependency graph for gvpr.c:

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Data Structures
struct	options

struct	nodestream

struct	trav_fns

struct	gvpr_state_t
	collective managed state used in `gvpr_core` More...

Macros
#define	NUM_ARGS 100

#define	LISTSEP ':'

#define	MARKED(x) (((x)->iu.integer) & 1)

#define	MARK(x) (((x)->iu.integer) = 1)

#define	ONSTACK(x) (((x)->iu.integer) & 2)

#define	PUSH(x, e) (((x)->iu.integer) \|= 2, (x)->ine = (e))

#define	POP(x) (((x)->iu.integer) &= (~2))

#define	PRE_VISIT 1

#define	POST_VISIT 2

Typedefs
typedef Agedge_t (	fstedgefn_t) (Agraph_t , Agnode_t )

typedef Agedge_t (	nxttedgefn_t) (Agraph_t , Agedge_t , Agnode_t *)

Functions
static FILE *	openOut (char *name)

static char *	gettok (char **sp)

static int	parseArgs (char s, int argc, char **argv)

static char *	concat (char pfx, char sfx)

static char *	dflt_gvprpath (void)

static char *	resolve (char *arg, int verbose)

static char *	getOptarg (int c, char *argp, int argip, int argc, char **argv)

static int	doFlags (char arg, int argi, int argc, char argv, options opts)

static void	freeOpts (options opts)

static options	scanArgs (int argc, char **argv)

static Agobj_t *	evalEdge (Gpr_t state, Expr_t prog, comp_block xprog, Agedge_t e)

static Agobj_t *	evalNode (Gpr_t state, Expr_t prog, comp_block xprog, Agnode_t n)

static Agnode_t *	nextNode (Gpr_t state, nodestream nodes)

static Agedge_t *	agnxtout_ (Agraph_t g, Agedge_t e, Agnode_t *ignored)
	`agnxtout` wrapper to tweak calling convention

static Agedge_t *	agnxtin_ (Agraph_t g, Agedge_t e, Agnode_t *ignored)
	`agnxtin` wrapper to tweak calling convention

static void	travBFS (Gpr_t state, Expr_t prog, comp_block *xprog)

static void	travDFS (Gpr_t state, Expr_t prog, comp_block xprog, trav_fns fns)

static void	travNodes (Gpr_t state, Expr_t prog, comp_block *xprog)

static void	travEdges (Gpr_t state, Expr_t prog, comp_block *xprog)

static void	travFlat (Gpr_t state, Expr_t prog, comp_block *xprog)

static void	doCleanup (Agraph_t *g)

static bool	traverse (Gpr_t state, Expr_t prog, comp_block *bp, bool cleanup)

static void	addOutputGraph (Gpr_t state, gvpropts uopts)

static void	chkClose (Agraph_t *g)

static Agraph_t *	ing_read (const char filename, void fp)

static void	gvexitf (void *env, int v)

static void	gverrorf (Expr_t handle, Exdisc_t discipline, int level, const char *fmt,...)

static int	gvpr_core (int argc, char argv[], gvpropts uopts, gvpr_state_t *gs)

int	gvpr (int argc, char argv[], gvpropts uopts)

Variables
static char *	Info []

static const char *	usage

static trav_fns	DFSfns = {agfstedge, agnxtedge, 1, 0}

static trav_fns	FWDfns = {agfstout, agnxtout_, 0, 0}

static trav_fns	REVfns = {agfstin, agnxtin_, 0, 0}

Macro Definition Documentation

◆ LISTSEP

#define LISTSEP ':'

Definition at line 177 of file gvpr.c.

◆ MARK

#define MARK ( x ) (((x)->iu.integer) = 1)

Definition at line 533 of file gvpr.c.

◆ MARKED

#define MARKED ( x ) (((x)->iu.integer) & 1)

Definition at line 532 of file gvpr.c.

◆ NUM_ARGS

#define NUM_ARGS 100

Definition at line 137 of file gvpr.c.

◆ ONSTACK

#define ONSTACK ( x ) (((x)->iu.integer) & 2)

Definition at line 534 of file gvpr.c.

◆ POP

#define POP ( x ) (((x)->iu.integer) &= (~2))

Definition at line 536 of file gvpr.c.

◆ POST_VISIT

#define POST_VISIT 2

Definition at line 542 of file gvpr.c.

◆ PRE_VISIT

#define PRE_VISIT 1

Definition at line 541 of file gvpr.c.

◆ PUSH

#define PUSH	(	x,
		e
	)	(((x)->iu.integer) \|= 2, (x)->ine = (e))

Definition at line 535 of file gvpr.c.

Typedef Documentation

◆ fstedgefn_t

typedef Agedge_t *(* fstedgefn_t) (Agraph_t *, Agnode_t *)

Definition at line 538 of file gvpr.c.

◆ nxttedgefn_t

typedef Agedge_t *(* nxttedgefn_t) (Agraph_t *, Agedge_t *, Agnode_t *)

Definition at line 539 of file gvpr.c.

Function Documentation

◆ addOutputGraph()

static void addOutputGraph	(	Gpr_t *	state,
		gvpropts *	uopts
	)

static

Definition at line 869 of file gvpr.c.

References agroot(), cloneO(), Gpr_t::curgraph, gv_recalloc(), gvpropts::ingraphs, gvpropts::n_outgraphs, Gpr_t::outgraph, and gvpropts::outgraphs.

Referenced by gvpr_core().

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◆ agnxtin_()

static Agedge_t * agnxtin_	(	Agraph_t *	g,
		Agedge_t *	e,
		Agnode_t *	ignored
	)

static

Definition at line 558 of file gvpr.c.

References agnxtin().

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◆ agnxtout_()

static Agedge_t * agnxtout_	(	Agraph_t *	g,
		Agedge_t *	e,
		Agnode_t *	ignored
	)

static

Definition at line 552 of file gvpr.c.

References agnxtout().

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◆ chkClose()

static void chkClose ( Agraph_t * g )

static

Definition at line 881 of file gvpr.c.

References agclose(), and gData.

Referenced by gvpr_core().

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◆ concat()

static char * concat	(	char *	pfx,
		char *	sfx
	)

static

Definition at line 180 of file gvpr.c.

References agxbdisown(), and agxbprint().

Referenced by resolve().

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◆ dflt_gvprpath()

static char * dflt_gvprpath ( void )

static

get gvpr’s default paths to search for scripts

The content returned is a list of paths separated by the platform’s native $PATH separator, either ':' or ';'. The caller is responsible for freeing the returned string.

Returns: Search path for scripts or NULL on failure

Definition at line 193 of file gvpr.c.

References free(), gv_find_me(), LISTSEP, malloc(), NULL, and PATH_SEPARATOR.

Referenced by resolve().

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◆ doCleanup()

static void doCleanup ( Agraph_t * g )

static

Definition at line 741 of file gvpr.c.

References agfstnode(), agnxtnode(), nData, and NULL.

Referenced by traverse().

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◆ doFlags()

static int doFlags	(	char *	arg,
		int	argi,
		int	argc,
		char **	argv,
		options *	opts
	)

static

Definition at line 336 of file gvpr.c.

References error, ERROR_ERROR, ERROR_USAGE, ERROR_WARNING, getOptarg(), Info, openOut(), opts, parseArgs(), resolve(), setTraceLevel(), and usage.

Referenced by scanArgs().

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◆ evalEdge()

static Agobj_t * evalEdge	(	Gpr_t *	state,
		Expr_t *	prog,
		comp_block *	xprog,
		Agedge_t *	e
	)

static

Definition at line 467 of file gvpr.c.

References case_stmt::action, agsubedge(), Gpr_t::curobj, comp_block::edge_stmts, exeval(), case_stmt::guard, EX_STYPE::integer, comp_block::n_estmts, and Gpr_t::target.

Referenced by travBFS(), travDFS(), travEdges(), and travFlat().

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◆ evalNode()

static Agobj_t * evalNode	(	Gpr_t *	state,
		Expr_t *	prog,
		comp_block *	xprog,
		Agnode_t *	n
	)

static

Definition at line 489 of file gvpr.c.

References case_stmt::action, agsubnode(), Gpr_t::curobj, exeval(), case_stmt::guard, EX_STYPE::integer, comp_block::n_nstmts, comp_block::node_stmts, and Gpr_t::target.

Referenced by travBFS(), travDFS(), travFlat(), and travNodes().

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◆ freeOpts()

static void freeOpts ( options opts )

static

Definition at line 396 of file gvpr.c.

References free(), NULL, and opts.

Referenced by gvpr().

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◆ getOptarg()

static char * getOptarg	(	int	c,
		char **	argp,
		int *	argip,
		int	argc,
		char **	argv
	)

static

Definition at line 307 of file gvpr.c.

References error, ERROR_WARNING, and NULL.

Referenced by doFlags().

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◆ gettok()

static char * gettok ( char ** sp )

static

Definition at line 96 of file gvpr.c.

References error, ERROR_WARNING, gv_isspace(), and NULL.

Referenced by parseArgs().

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◆ gverrorf()

static void gverrorf	(	Expr_t *	handle,
		Exdisc_t *	discipline,
		int	level,
		const char *	fmt,
			...
	)

static

Definition at line 920 of file gvpr.c.

References ERROR_ERROR, errorv(), Gpr_t::flags, graphviz_exit(), GV_USE_EXIT, GV_USE_JUMP, Gpr_t::jbuf, and Exdisc_s::user.

Referenced by gvpr_core().

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◆ gvexitf()

static void gvexitf	(	void *	env,
		int	v
	)

static

Definition at line 914 of file gvpr.c.

References Gpr_t::jbuf, and gvpr_state_t::state.

Referenced by gvpr_core().

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◆ gvpr()

int gvpr	(	int	argc,
		char *	argv[],
		gvpropts *	uopts
	)

main loop for gvpr

Returns: 0 on success

Definition at line 1100 of file gvpr.c.

References closeGPRState(), closeIngraph(), freeCompileProg(), freeOpts(), freeParseProg(), gvpr_core(), gvpr_state_t::ing, NULL, gvpr_state_t::opts, options::outFile, gvpr_state_t::prog, gvpr_state_t::state, and gvpr_state_t::xprog.

Referenced by main(), and run_gvpr().

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◆ gvpr_core()

static int gvpr_core	(	int	argc,
		char *	argv[],
		gvpropts *	uopts,
		gvpr_state_t *	gs
	)

static

Definition at line 948 of file gvpr.c.

References addBindings(), addOutputGraph(), agdelete(), agnnodes(), options::argc, options::argv, Agraph_s::base, comp_block::begg_stmt, comp_prog::begin_stmt, gvpropts::bindings, comp_prog::blocks, chkClose(), cleanup(), compflags_t::clone, cloneO(), options::compflags, compileProg(), Gpr_t::curgraph, Gpr_t::curobj, comp_block::does_walk_graph, comp_prog::end_stmt, comp_prog::endg_stmt, exeval(), fileName(), Gpr_t::flags, gvpropts::flags, GV_USE_EXIT, GV_USE_JUMP, GV_USE_OUTGRAPH, gvelapsed_sec(), gverrorf(), gvexitf(), gvstart_timer(), options::inFiles, Gpr_t::infname, gvpr_state_t::ing, ing_read(), gvpropts::ingraphs, initGPRState(), Gpr_t::jbuf, comp_prog::n_blocks, gvpropts::n_outgraphs, newIng(), newIngGraphs(), nextGraph(), Gpr_t::nextgraph, NULL, openGPRState(), gvpr_state_t::opts, options::outFile, Gpr_t::outgraph, gvpropts::outgraphs, parseProg(), comp_prog::prog, gvpr_state_t::prog, options::program, options::readAhead, scanArgs(), setErrorErrors(), sfioWrite(), compflags_t::srcout, options::state, gvpr_state_t::state, Gpr_t::target, traverse(), Gpr_t::tvroot, options::useFile, comp_prog::uses_graph, options::verbose, and gvpr_state_t::xprog.

Referenced by gvpr().

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◆ ing_read()

static Agraph_t * ing_read	(	const char *	filename,
		void *	fp
	)

static

Definition at line 891 of file gvpr.c.

References agconcat(), AGEDGE, aginit(), AGNODE, AGRAPH, NULL, and UDATA.

Referenced by gvpr_core().

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◆ nextNode()

static Agnode_t * nextNode	(	Gpr_t *	state,
		nodestream *	nodes
	)

static

Definition at line 516 of file gvpr.c.

References agfstnode(), agnxtnode(), Gpr_t::curgraph, Gpr_t::flags, GV_NEXT_SET, nodestream::oldroot, nodestream::prev, Gpr_t::tvnext, and Gpr_t::tvroot.

Referenced by travBFS(), and travDFS().

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◆ openOut()

static FILE * openOut ( char * name )

static

Definition at line 77 of file gvpr.c.

References error, and ERROR_ERROR.

Referenced by doFlags().

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◆ parseArgs()

static int parseArgs	(	char *	s,
		int	argc,
		char ***	argv
	)

static

Definition at line 145 of file gvpr.c.

References cnt(), error, ERROR_WARNING, gettok(), gv_recalloc(), gv_strdup(), and NUM_ARGS.

Referenced by doFlags().

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◆ resolve()

static char * resolve	(	char *	arg,
		int	verbose
	)

static

Definition at line 238 of file gvpr.c.

References agxbfree(), agxbprint(), agxbput(), agxbput_n(), agxbuse(), concat(), dflt_gvprpath(), error, ERROR_ERROR, fname, free(), gv_strdup(), LISTSEP, NULL, PATH_SEPARATOR, and verbose.

Referenced by doFlags().

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◆ scanArgs()

static options scanArgs	(	int	argc,
		char **	argv
	)

static

Definition at line 412 of file gvpr.c.

References doFlags(), error, ERROR_ERROR, ERROR_USAGE, NULL, opts, setErrorId(), and usage.

Referenced by gvpr_core().

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◆ travBFS()

static void travBFS	(	Gpr_t *	state,
		Expr_t *	prog,
		comp_block *	xprog
	)

static

Definition at line 569 of file gvpr.c.

References agfstedge(), agnxtedge(), evalEdge(), evalNode(), MARK, MARKED, nData, nextNode(), Agedge_s::node, nodestream::oldroot, ONSTACK, POP, nodestream::prev, and PUSH.

Referenced by traverse().

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◆ travDFS()

static void travDFS	(	Gpr_t *	state,
		Expr_t *	prog,
		comp_block *	xprog,
		trav_fns *	fns
	)

static

Definition at line 614 of file gvpr.c.

References agopp, evalEdge(), evalNode(), MARK, MARKED, nData, nextNode(), Agedge_s::node, NULL, nodestream::oldroot, ONSTACK, POP, POST_VISIT, PRE_VISIT, nodestream::prev, PUSH, and seed.

Referenced by traverse().

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◆ travEdges()

static void travEdges	(	Gpr_t *	state,
		Expr_t *	prog,
		comp_block *	xprog
	)

static

Definition at line 704 of file gvpr.c.

References agfstnode(), agfstout(), agnxtnode(), agnxtout(), Gpr_t::curgraph, and evalEdge().

Referenced by traverse().

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◆ traverse()

static bool traverse	(	Gpr_t *	state,
		Expr_t *	prog,
		comp_block *	bp,
		bool	cleanup
	)

static

Definition at line 755 of file gvpr.c.

References agsubg(), agxbfree(), agxbprint(), agxbuse(), cleanup(), Gpr_t::curgraph, DFSfns, doCleanup(), FWDfns, Gpr_t::name_used, openSubg(), Gpr_t::outgraph, POST_VISIT, PRE_VISIT, REVfns, Gpr_t::target, Gpr_t::tgtname, travBFS(), travDFS(), travEdges(), travFlat(), travNodes(), TV_bfs, TV_dfs, TV_en, TV_flat, TV_fwd, TV_ne, TV_postdfs, TV_postfwd, TV_postrev, TV_prepostdfs, TV_prepostfwd, TV_prepostrev, TV_rev, Gpr_t::tvt, UNREACHABLE, and trav_fns::visit.

Referenced by gvpr_core().

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◆ travFlat()

static void travFlat	(	Gpr_t *	state,
		Expr_t *	prog,
		comp_block *	xprog
	)

static

Definition at line 719 of file gvpr.c.

References agfstnode(), agfstout(), agnxtnode(), agnxtout(), Gpr_t::curgraph, evalEdge(), evalNode(), and comp_block::n_estmts.

Referenced by traverse().

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◆ travNodes()

static void travNodes	(	Gpr_t *	state,
		Expr_t *	prog,
		comp_block *	xprog
	)

static

Definition at line 694 of file gvpr.c.

References agfstnode(), agnxtnode(), Gpr_t::curgraph, and evalNode().

Referenced by traverse().

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Variable Documentation

◆ DFSfns

trav_fns DFSfns = {agfstedge, agnxtedge, 1, 0}

static

Definition at line 563 of file gvpr.c.

Referenced by traverse().

◆ FWDfns

trav_fns FWDfns = {agfstout, agnxtout_, 0, 0}

static

Definition at line 564 of file gvpr.c.

Referenced by traverse().

◆ Info

char* Info[]

static

Initial value:

= {
    "gvpr",          
    PACKAGE_VERSION, 
    BUILDDATE        
}

Definition at line 43 of file gvpr.c.

Referenced by doFlags().

◆ REVfns

trav_fns REVfns = {agfstin, agnxtin_, 0, 0}

static

Definition at line 565 of file gvpr.c.

Referenced by traverse().

◆ usage

const char* usage

static

Initial value:

=
    " [-o <ofile>] [-a <args>] ([-f <prog>] | 'prog') [files]\n\
   -c         - use source graph for output\n\
   -f <pfile> - find program in file <pfile>\n\
   -i         - create node induced subgraph\n\
   -a <args>  - string arguments available as ARGV[0..]\n\
   -o <ofile> - write output to <ofile>; stdout by default\n\
   -n         - no read-ahead of input graphs\n\
   -q         - turn off warning messages\n\
   -v         - enable verbose messages\n\
   -V         - print version info\n\
   -?         - print usage info\n\
If no files are specified, stdin is used\n"

Definition at line 49 of file gvpr.c.

Referenced by doFlags(), errexit(), gdCmd(), init(), init(), init(), init(), init(), init(), init(), init(), init(), init(), init(), init(), init(), init(), init(), initargs(), initargs(), initargs(), main(), parseArgs(), scanArgs(), scanArgs(), scanargs(), setAction(), and tclGdColorCmd().

Data Structures

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

◆ LISTSEP

◆ MARK

◆ MARKED

◆ NUM_ARGS

◆ ONSTACK

◆ POP

◆ POST_VISIT

◆ PRE_VISIT

◆ PUSH

Typedef Documentation

◆ fstedgefn_t

◆ nxttedgefn_t

Function Documentation

◆ addOutputGraph()

◆ agnxtin_()

◆ agnxtout_()

◆ chkClose()

◆ concat()

◆ dflt_gvprpath()

◆ doCleanup()

◆ doFlags()

◆ evalEdge()

◆ evalNode()

◆ freeOpts()

◆ getOptarg()

◆ gettok()

◆ gverrorf()

◆ gvexitf()

◆ gvpr()

◆ gvpr_core()

◆ ing_read()

◆ nextNode()

◆ openOut()

◆ parseArgs()

◆ resolve()

◆ scanArgs()

◆ travBFS()

◆ travDFS()

◆ travEdges()

◆ traverse()

◆ travFlat()

◆ travNodes()

Variable Documentation

◆ DFSfns

◆ FWDfns

◆ Info

◆ REVfns

◆ usage