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/* 
 *------------------------------------------------------------------
 * Copyright (c) 2005-2016 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef _CPEL_H_
#define _CPEL_H_ 1

typedef struct cpel_file_header_ {
    unsigned char endian_version;
    unsigned char pad;
    unsigned short nsections;
    unsigned file_date;
} cpel_file_header_t;

#define CPEL_FILE_LITTLE_ENDIAN	0x80
#define CPEL_FILE_VERSION       0x01
#define CPEL_FILE_VERSION_MASK  0x7F

typedef struct cpel_section_header_ {
    unsigned int section_type;
    unsigned int data_length;        /* does NOT include type and itself */
} cpel_section_header_t;

#define CPEL_SECTION_STRTAB	1
/* string at offset 0 is the name of the table */

#define CPEL_SECTION_SYMTAB     2
#define CPEL_SECTION_EVTDEF     3

typedef struct event_definition_section_header_ {
    char string_table_name[64];
    unsigned int number_of_event_definitions;
} event_definition_section_header_t;

typedef struct event_definition_ {
    unsigned int event;
    unsigned int event_format;
    unsigned int datum_format;
} event_definition_t;

#define CPEL_SECTION_TRACKDEF   4

typedef struct track_definition_section_header_ {
    char string_table_name[64];
    unsigned int number_of_track_definitions;
} track_definition_section_header_t;

typedef struct track_definition_ {
    unsigned int track;
    unsigned int track_format;
} track_definition_t;

#define CPEL_SECTION_EVENT      5

typedef struct event_section_header_ {
    char string_table_name[64];
    unsigned int number_of_events;
    unsigned int clock_ticks_per_second;
} event_section_header_t;

typedef struct event_entry_ {
    unsigned int time[2];
    unsigned int track;
    unsigned int event_code;
    unsigned int event_datum;
} event_entry_t;

#define CPEL_NUM_SECTION_TYPES 5

#endif /* _CPEL_H_ */
/span> uword virtual_base; /* base of the region object */ uword virtual_size; void *region_heap; void *data_base; /* data portion base address */ void *data_heap; /* data heap, if any */ volatile void *user_ctx; /* user context pointer */ /* stuff allocated in the region's heap */ uword bitmap_size; /* nbits in virtual alloc bitmap */ uword *bitmap; /* the bitmap */ char *region_name; char *backing_file; char **filenames; uword *client_pids; /* pad */ /* next page: * (64K) clib heap for the region itself * * data_base -> whatever is in this region */ } svm_region_t; typedef struct svm_map_region_args_ { char *root_path; /* NULL means use the truly global arena */ char *name; u64 baseva; u64 size; u64 pvt_heap_size; uword flags; char *backing_file; uword backing_mmap_size; /* uid, gid to own the svm region(s) */ int uid; int gid; } svm_map_region_args_t; /* * Memory shared across all router instances. Packet buffers, etc * Base should be "out of the way," and size should be big enough to * cover everything we plan to put here. */ #define SVM_GLOBAL_REGION_BASEVA 0x30000000 #define SVM_GLOBAL_REGION_SIZE (64<<20) #define SVM_GLOBAL_REGION_NAME "/global_vm" /* * Memory shared across individual router instances. */ #define SVM_OVERLAY_REGION_BASEVA \ (SVM_GLOBAL_REGION_BASEVA + SVM_GLOBAL_REGION_SIZE) #define SVM_OVERLAY_REGION_SIZE (1<<20) #define SVM_OVERLAY_REGION_BASENAME "/overlay_vm" typedef struct { u8 *subregion_name; } svm_subregion_t; typedef struct { svm_subregion_t *subregions; /* subregion pool */ uword *name_hash; u8 *root_path; } svm_main_region_t; void *svm_region_find_or_create (svm_map_region_args_t * a); void svm_region_init (void); void svm_region_init_chroot (char *root_path); void svm_region_init_chroot_uid_gid (char *root_path, int uid, int gid); void svm_region_init_args (svm_map_region_args_t * a); void svm_region_exit (void); void svm_region_unmap (void *rp_arg); void svm_client_scan (char *root_path); void svm_client_scan_this_region_nolock (svm_region_t * rp); u8 *shm_name_from_svm_map_region_args (svm_map_region_args_t * a); static inline void * svm_mem_alloc (svm_region_t * rp, uword size) { u8 *oldheap; ASSERT (rp->flags & SVM_FLAGS_MHEAP); u8 *rv; pthread_mutex_lock (&rp->mutex); oldheap = clib_mem_set_heap (rp->data_heap); rv = clib_mem_alloc (size); clib_mem_set_heap (oldheap); pthread_mutex_unlock (&rp->mutex); return (rv); } static inline void * svm_mem_alloc_aligned_at_offset (svm_region_t * rp, uword size, uword align, uword offset) { u8 *oldheap; ASSERT (rp->flags & SVM_FLAGS_MHEAP); u8 *rv; pthread_mutex_lock (&rp->mutex); oldheap = clib_mem_set_heap (rp->data_heap); rv = clib_mem_alloc_aligned_at_offset (size, align, offset); clib_mem_set_heap (oldheap); pthread_mutex_unlock (&rp->mutex); return (rv); } static inline void svm_mem_free (svm_region_t * rp, void *ptr) { u8 *oldheap; ASSERT (rp->flags & SVM_FLAGS_MHEAP); pthread_mutex_lock (&rp->mutex); oldheap = clib_mem_set_heap (rp->data_heap); clib_mem_free (ptr); clib_mem_set_heap (oldheap); pthread_mutex_unlock (&rp->mutex); } static inline void * svm_push_pvt_heap (svm_region_t * rp) { u8 *oldheap; oldheap = clib_mem_set_heap (rp->region_heap); return ((void *) oldheap); } static inline void * svm_push_data_heap (svm_region_t * rp) { u8 *oldheap; oldheap = clib_mem_set_heap (rp->data_heap); return ((void *) oldheap); } static inline void svm_pop_heap (void *oldheap) { clib_mem_set_heap (oldheap); } u8 *format_svm_region (u8 * s, va_list * args); svm_region_t *svm_get_root_rp (void); #endif /* __included_svm_h__ */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */