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Diffstat (limited to 'include/mach/profil.h')
| -rw-r--r-- | include/mach/profil.h | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/include/mach/profil.h b/include/mach/profil.h new file mode 100644 index 0000000..0eb4ce4 --- /dev/null +++ b/include/mach/profil.h @@ -0,0 +1,212 @@ +/* + * Mach Operating System + * Copyright (c) 1991,1990,1989 Carnegie Mellon University + * All Rights Reserved. + * + * Permission to use, copy, modify and distribute this software and its + * documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR + * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie Mellon + * the rights to redistribute these changes. + */ + +/* + * Copyright 1991 by Open Software Foundation, + * Grenoble, FRANCE + * + * All Rights Reserved + * + * Permission to use, copy, modify, and distribute this software and + * its documentation for any purpose and without fee is hereby granted, + * provided that the above copyright notice appears in all copies and + * that both the copyright notice and this permission notice appear in + * supporting documentation, and that the name of OSF or Open Software + * Foundation not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. + * + * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, + * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM + * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, + * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION + * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + + +#ifndef _MACH_PROFIL_H_ +#define _MACH_PROFIL_H_ + +#include <mach/boolean.h> +#include <ipc/ipc_object.h> +#include <vm/vm_kern.h> + + +#define NB_PROF_BUFFER 2 /* number of buffers servicing a + * profiled thread */ +#define SIZE_PROF_BUFFER 100 /* size of a profil buffer (in int) + * This values is also defined in + * the server (ugly), be careful ! */ + + +struct prof_data { + ipc_object_t prof_port; /* where to send a full buffer */ + + struct buffer { + int *p_zone; /* points to the actual storage area */ + int p_index;/* next slot to be filled */ + boolean_t p_full; /* is the current buffer full ? */ + } prof_area[NB_PROF_BUFFER]; + + int prof_index; /* index of the buffer structure + * currently in use */ + +}; +typedef struct prof_data *prof_data_t; +#define NULLPBUF ((prof_data_t) 0) +typedef struct buffer *buffer_t; + +/* Macros */ + +#define set_pbuf_nb(pbuf, nb) \ + (((nb) >= 0 && (nb) < NB_PROF_BUFFER) \ + ? (pbuf)->prof_index = (nb), 1 \ + : 0) + + +#define get_pbuf_nb(pbuf) \ + (pbuf)->prof_index + + +extern vm_map_t kernel_map; + +#define dealloc_pbuf_area(pbuf) \ + { \ + register int i; \ + \ + for(i=0; i < NB_PROF_BUFFER ; i++) \ + kmem_free(kernel_map, \ + (vm_offset_t) (pbuf)->prof_area[i].p_zone, \ + SIZE_PROF_BUFFER*sizeof(int)); \ + kmem_free(kernel_map, \ + (vm_offset_t)(pbuf), \ + sizeof(struct prof_data)); \ + } + + +#define alloc_pbuf_area(pbuf, vmpbuf) \ + (vmpbuf) = (vm_offset_t) 0; \ + if (kmem_alloc(kernel_map, &(vmpbuf) , sizeof(struct prof_data)) == \ + KERN_SUCCESS) { \ + register int i; \ + register boolean_t end; \ + \ + (pbuf) = (prof_data_t) (vmpbuf); \ + for(i=0, end=FALSE; i < NB_PROF_BUFFER && end == FALSE; i++) { \ + (vmpbuf) = (vm_offset_t) 0; \ + if (kmem_alloc(kernel_map,&(vmpbuf),SIZE_PROF_BUFFER*sizeof(int)) == KERN_SUCCESS) { \ + (pbuf)->prof_area[i].p_zone = (int *) (vmpbuf); \ + (pbuf)->prof_area[i].p_full = FALSE; \ + } \ + else { \ + (pbuf) = NULLPBUF; \ + end = TRUE; \ + } \ + } \ + } \ + else \ + (pbuf) = NULLPBUF; + + + +/* MACRO set_pbuf_value +** +** enters the value 'val' in the buffer 'pbuf' and returns the following +** indications: 0: means that a fatal error occured: the buffer was full +** (it hasn't been sent yet) +** 1: means that a value has been inserted successfully +** 2: means that we'v just entered the last value causing +** the current buffer to be full.(must switch to +** another buffer and signal the sender to send it) +*/ + +#define set_pbuf_value(pbuf, val) \ + { \ + register buffer_t a = &((pbuf)->prof_area[(pbuf)->prof_index]); \ + register int i = a->p_index++; \ + register boolean_t f = a->p_full; \ + \ + if (f == TRUE ) \ + *(val) = 0; \ + else { \ + a->p_zone[i] = *(val); \ + if (i == SIZE_PROF_BUFFER-1) { \ + a->p_full = TRUE; \ + *(val) = 2; \ + } \ + else \ + *(val) = 1; \ + } \ + } + + +#define reset_pbuf_area(pbuf) \ + { \ + register int *i = &((pbuf)->prof_index); \ + \ + *i = (*i == NB_PROF_BUFFER-1) ? 0 : ++(*i); \ + (pbuf)->prof_area[*i].p_index = 0; \ + } + + +/**************************************************************/ +/* Structure, elements used for queuing operations on buffers */ +/**************************************************************/ + +#define thread_t int * +/* +** This must be done in order to avoid a circular inclusion +** with file kern/thread.h . +** When using this data structure, one must cast the actual +** type, this is (int *) or (thread_t) +*/ + +struct buf_to_send { + queue_chain_t list; + thread_t thread; + int number; /* the number of the buffer to be sent */ + char wakeme; /* do wakeup when buffer has been sent */ + } ; + +#undef thread_t + + + +typedef struct buf_to_send *buf_to_send_t; + +#define NULLBTS ((buf_to_send_t) 0) + +/* +** Global variable: the head of the queue of buffers to send +** It is a queue with locks (uses macros from queue.h) and it +** is shared by hardclock() and the sender_thread() +*/ + +mpqueue_head_t prof_queue; + +#endif /* _MACH_PROF_H_ */ |