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126 lines
4.1 KiB
126 lines
4.1 KiB
/*
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* UCW Library -- Configuration files: only for internal use of conf-*.c
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*
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* (c) 2001--2006 Robert Spalek <robert@ucw.cz>
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* (c) 2003--2012 Martin Mares <mj@ucw.cz>
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* (c) 2014 Pavel Charvat <pchar@ucw.cz>
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*
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* This software may be freely distributed and used according to the terms
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* of the GNU Lesser General Public License.
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*/
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#ifndef _UCW_CONF_INTERNAL_H
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#define _UCW_CONF_INTERNAL_H
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#include <ucw/threads.h>
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#ifdef CONFIG_UCW_CLEAN_ABI
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#define cf_add_dirty ucw_cf_add_dirty
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#define cf_commit_all ucw_cf_commit_all
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#define cf_done_stack ucw_cf_done_stack
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#define cf_find_subitem ucw_cf_find_subitem
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#define cf_init_stack ucw_cf_init_stack
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#define cf_interpret_line ucw_cf_interpret_line
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#define cf_journal_delete ucw_cf_journal_delete
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#define cf_journal_swap ucw_cf_journal_swap
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#define cf_load_default ucw_cf_load_default
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#define cf_obtain_context ucw_cf_obtain_context
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#define cf_op_names ucw_cf_op_names
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#define cf_sections ucw_cf_sections
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#define cf_type_names ucw_cf_type_names
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#define cf_type_size ucw_cf_type_size
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#endif
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/* Item stack used by conf-intr.c */
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#define MAX_STACK_SIZE 16
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struct item_stack { // used by conf-intr.c
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struct cf_section *sec; // nested section
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void *base_ptr; // because original pointers are often relative
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int op; // it is performed when a closing brace is encountered
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void *list; // list the operations should be done on
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u32 mask; // bit array of selectors searching in a list
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struct cf_item *item; // cf_item of the list
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};
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/* List of dirty sections used by conf-section.c */
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struct dirty_section {
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struct cf_section *sec;
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void *ptr;
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};
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#define GBUF_TYPE struct dirty_section
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#define GBUF_PREFIX(x) dirtsec_##x
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#include <ucw/gbuf.h>
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/* Configuration context */
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struct cf_context {
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struct mempool *pool;
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int is_active;
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int config_loaded; // at least one config file was loaded
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struct cf_parser_state *parser;
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uint everything_committed; // did we already commit each section?
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uint postpone_commit; // counter of calls to cf_open_group()
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uint other_options; // used internally by cf_getopt()
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clist conf_entries; // files/strings to reload
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struct cf_journal_item *journal; // journalling
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int enable_journal;
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struct old_pools *pools;
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struct item_stack stack[MAX_STACK_SIZE]; // interpreter stack
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uint stack_level;
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struct cf_section sections; // root section
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uint sections_initialized;
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dirtsec_t dirty; // dirty sections
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uint dirties;
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};
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/* conf-ctxt.c */
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static inline struct cf_context *cf_get_context(void)
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{
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struct cf_context *cc = ucwlib_thread_context()->cf_context;
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ASSERT(cc->is_active);
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return cc;
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}
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// In fact, this is equivalent to cf_get_context(), but it is not inlined,
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// because we want to force the linker to include conf-context.c, which contains
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// a constructor of the whole context mechanism.
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struct cf_context *cf_obtain_context(void);
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/* conf-intr.c */
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#define OP_MASK 0xff // only get the operation
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#define OP_OPEN 0x100 // here we only get an opening brace instead of parameters
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#define OP_1ST 0x200 // in the 1st phase selectors are recorded into the mask
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#define OP_2ND 0x400 // in the 2nd phase real data are entered
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enum cf_operation;
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extern char *cf_op_names[];
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extern char *cf_type_names[];
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uint cf_type_size(enum cf_type type, const union cf_union *u);
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char *cf_interpret_line(struct cf_context *cc, char *name, enum cf_operation op, int number, char **pars);
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void cf_init_stack(struct cf_context *cc);
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int cf_done_stack(struct cf_context *cc);
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/* conf-journal.c */
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void cf_journal_swap(void);
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void cf_journal_delete(void);
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/* conf-section.c */
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#define SEC_FLAG_DYNAMIC 0x80000000 // contains a dynamic attribute
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#define SEC_FLAG_UNKNOWN 0x40000000 // ignore unknown entriies
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#define SEC_FLAG_CANT_COPY 0x20000000 // contains lists or parsers
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#define SEC_FLAG_NUMBER 0x0fffffff // number of entries
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enum cf_commit_mode { CF_NO_COMMIT, CF_COMMIT, CF_COMMIT_ALL };
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extern struct cf_section cf_sections;
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struct cf_item *cf_find_subitem(struct cf_section *sec, const char *name);
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int cf_commit_all(enum cf_commit_mode cm);
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void cf_add_dirty(struct cf_section *sec, void *ptr);
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/* conf-getopt.c */
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void cf_load_default(struct cf_context *cc);
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#endif
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