diff options
Diffstat (limited to 'argp/argp-parse.c')
| -rw-r--r-- | argp/argp-parse.c | 102 |
1 files changed, 30 insertions, 72 deletions
diff --git a/argp/argp-parse.c b/argp/argp-parse.c index 47223dc597..4718ced81d 100644 --- a/argp/argp-parse.c +++ b/argp/argp-parse.c @@ -1,5 +1,5 @@ /* Hierarchial argument parsing, layered over getopt - Copyright (C) 1995-2000, 2002, 2003 Free Software Foundation, Inc. + Copyright (C) 1995-2000, 2002, 2003, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. Written by Miles Bader <miles@gnu.ai.mit.edu>. @@ -42,6 +42,7 @@ char *alloca (); #include <unistd.h> #include <limits.h> #include <getopt.h> +#include <getopt_int.h> #ifndef _ /* This is for other GNU distributions with internationalized messages. @@ -62,14 +63,6 @@ char *alloca (); # define N_(msgid) (msgid) #endif -#if _LIBC - 0 -#include <bits/libc-lock.h> -#else -#ifdef HAVE_CTHREADS_H -#include <cthreads.h> -#endif -#endif /* _LIBC */ - #include "argp.h" #include "argp-namefrob.h" @@ -97,14 +90,8 @@ char *alloca (); /* When argp is given the --HANG switch, _ARGP_HANG is set and argp will sleep for one second intervals, decrementing _ARGP_HANG until it's zero. Thus you can force the program to continue by attaching a debugger and setting - it to 0 yourself. - - XXX This variable used to be exported. But there seems to be no - need, at least not inside libc. */ -#ifdef _LIBC -static -#endif -volatile int _argp_hang; + it to 0 yourself. */ +static volatile int _argp_hang; #define OPT_PROGNAME -2 #define OPT_USAGE -3 @@ -223,42 +210,7 @@ find_long_option (struct option *long_options, const char *name) else return -1; } - -/* If we can, we regulate access to getopt, which is non-reentrant, with a - mutex. Since the case we're trying to guard against is two different - threads interfering, and it's possible that someone might want to call - argp_parse recursively (they're careful), we use a recursive lock if - possible. */ - -#if _LIBC - 0 - -__libc_lock_define_initialized_recursive (static, getopt_lock) -#define LOCK_GETOPT __libc_lock_lock_recursive (getopt_lock) -#define UNLOCK_GETOPT __libc_lock_unlock_recursive (getopt_lock) - -#else /* !_LIBC */ -#ifdef HAVE_CTHREADS_H -static struct mutex getopt_lock = MUTEX_INITIALIZER; -#define LOCK_GETOPT mutex_lock (&getopt_lock) -#define UNLOCK_GETOPT mutex_unlock (&getopt_lock) - -#else /* !HAVE_CTHREADS_H */ - -#define LOCK_GETOPT (void)0 -#define UNLOCK_GETOPT (void)0 - -#endif /* HAVE_CTHREADS_H */ -#endif /* _LIBC */ - -/* This hack to allow programs that know what's going on to call argp - recursively. If someday argp is changed not to use the non-reentrant - getopt interface, we can get rid of this shit. XXX */ -void -_argp_unlock_xxx (void) -{ - UNLOCK_GETOPT; -} /* The state of a `group' during parsing. Each group corresponds to a particular argp structure from the tree of such descending from the top @@ -320,6 +272,8 @@ struct parser /* LONG_OPTS is the array of getop long option structures for the union of all the groups of options. */ struct option *long_opts; + /* OPT_DATA is the getopt data used for the re-entrant getopt. */ + struct _getopt_data opt_data; /* States of the various parsing groups. */ struct group *groups; @@ -531,6 +485,7 @@ parser_init (struct parser *parser, const struct argp *argp, error_t err = 0; struct group *group; struct parser_sizes szs; + struct _getopt_data opt_data = _GETOPT_DATA_INITIALIZER; szs.short_len = (flags & ARGP_NO_ARGS) ? 0 : 1; szs.long_len = 0; @@ -554,6 +509,7 @@ parser_init (struct parser *parser, const struct argp *argp, parser->child_inputs = parser->storage + GLEN; parser->long_opts = parser->storage + GLEN + CLEN; parser->short_opts = parser->storage + GLEN + CLEN + LLEN; + parser->opt_data = opt_data; memset (parser->child_inputs, 0, szs.num_child_inputs * sizeof (void *)); parser_convert (parser, argp, flags); @@ -597,19 +553,16 @@ parser_init (struct parser *parser, const struct argp *argp, if (err) return err; - /* Getopt is (currently) non-reentrant. */ - LOCK_GETOPT; - if (parser->state.flags & ARGP_NO_ERRS) { - opterr = 0; + parser->opt_data.opterr = 0; if (parser->state.flags & ARGP_PARSE_ARGV0) /* getopt always skips ARGV[0], so we have to fake it out. As long as OPTERR is 0, then it shouldn't actually try to access it. */ parser->state.argv--, parser->state.argc++; } else - opterr = 1; /* Print error messages. */ + parser->opt_data.opterr = 1; /* Print error messages. */ if (parser->state.argv == argv && argv[0]) /* There's an argv[0]; use it for messages. */ @@ -630,8 +583,6 @@ parser_finalize (struct parser *parser, { struct group *group; - UNLOCK_GETOPT; - if (err == EBADKEY && arg_ebadkey) /* Suppress errors generated by unparsed arguments. */ err = 0; @@ -793,7 +744,8 @@ parser_parse_opt (struct parser *parser, int opt, char *val) for (group = parser->groups; group < parser->egroup; group++) if (group->short_end > short_index) { - err = group_parse (group, &parser->state, opt, optarg); + err = group_parse (group, &parser->state, opt, + parser->opt_data.optarg); break; } } @@ -802,7 +754,8 @@ parser_parse_opt (struct parser *parser, int opt, char *val) the user value in order to preserve the sign. */ err = group_parse (&parser->groups[group_key - 1], &parser->state, - (opt << GROUP_BITS) >> GROUP_BITS, optarg); + (opt << GROUP_BITS) >> GROUP_BITS, + parser->opt_data.optarg); if (err == EBADKEY) /* At least currently, an option not recognized is an error in the @@ -848,15 +801,20 @@ parser_parse_next (struct parser *parser, int *arg_ebadkey) if (parser->try_getopt && !parser->state.quoted) /* Give getopt a chance to parse this. */ { - optind = parser->state.next; /* Put it back in OPTIND for getopt. */ - optopt = KEY_END; /* Distinguish KEY_ERR from a real option. */ + /* Put it back in OPTIND for getopt. */ + parser->opt_data.optind = parser->state.next; + /* Distinguish KEY_ERR from a real option. */ + parser->opt_data.optopt = KEY_END; if (parser->state.flags & ARGP_LONG_ONLY) - opt = getopt_long_only (parser->state.argc, parser->state.argv, - parser->short_opts, parser->long_opts, 0); + opt = _getopt_long_only_r (parser->state.argc, parser->state.argv, + parser->short_opts, parser->long_opts, 0, + &parser->opt_data); else - opt = getopt_long (parser->state.argc, parser->state.argv, - parser->short_opts, parser->long_opts, 0); - parser->state.next = optind; /* And see what getopt did. */ + opt = _getopt_long_r (parser->state.argc, parser->state.argv, + parser->short_opts, parser->long_opts, 0, + &parser->opt_data); + /* And see what getopt did. */ + parser->state.next = parser->opt_data.optind; if (opt == KEY_END) /* Getopt says there are no more options, so stop using @@ -872,7 +830,7 @@ parser_parse_next (struct parser *parser, int *arg_ebadkey) here, whatever happens. */ parser->state.quoted = parser->state.next; } - else if (opt == KEY_ERR && optopt != KEY_END) + else if (opt == KEY_ERR && parser->opt_data.optopt != KEY_END) /* KEY_ERR can have the same value as a valid user short option, but in the case of a real error, getopt sets OPTOPT to the offending character, which can never be KEY_END. */ @@ -898,15 +856,15 @@ parser_parse_next (struct parser *parser, int *arg_ebadkey) /* A non-option arg; simulate what getopt might have done. */ { opt = KEY_ARG; - optarg = parser->state.argv[parser->state.next++]; + parser->opt_data.optarg = parser->state.argv[parser->state.next++]; } } if (opt == KEY_ARG) /* A non-option argument; try each parser in turn. */ - err = parser_parse_arg (parser, optarg); + err = parser_parse_arg (parser, parser->opt_data.optarg); else - err = parser_parse_opt (parser, opt, optarg); + err = parser_parse_opt (parser, opt, parser->opt_data.optarg); if (err == EBADKEY) *arg_ebadkey = (opt == KEY_END || opt == KEY_ARG); |