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tor/src/common/torint.h
teor (Tim Wilson-Brown) 35bbf2e4a4 Prop210: Add schedules for simultaneous client consensus downloads 
Prop210: Add attempt-based connection schedules

Existing tor schedules increment the schedule position on failure,
then retry the connection after the scheduled time.

To make multiple simultaneous connections, we need to increment the
schedule position when making each attempt, then retry a (potentially
simultaneous) connection after the scheduled time.

(Also change find_dl_schedule_and_len to find_dl_schedule, as it no
longer takes or returns len.)

Prop210: Add multiple simultaneous consensus downloads for clients

Make connections on TestingClientBootstrapConsensus*DownloadSchedule,
incrementing the schedule each time the client attempts to connect.

Check if the number of downloads is less than
TestingClientBootstrapConsensusMaxInProgressTries before trying any
more connections.
2015-12-16 04:37:49 +11:00

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/* Copyright (c) 2003, Roger Dingledine
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2015, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file torint.h
* \brief Header file to define uint32_t and friends
**/
#ifndef TOR_TORINT_H
#define TOR_TORINT_H
#include "orconfig.h"
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
#ifdef HAVE_SYS_LIMITS_H
#include <sys/limits.h>
#endif
#ifdef HAVE_MACHINE_LIMITS_H
#if !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__)
/* FreeBSD has a bug where it complains that this file is obsolete,
and I should migrate to using sys/limits. It complains even when
I include both.
__FreeBSD_kernel__ is defined by Debian GNU/kFreeBSD which
does the same thing (but doesn't defined __FreeBSD__).
*/
#include <machine/limits.h>
#endif
#endif
#ifdef HAVE_INTTYPES_H
#include <inttypes.h>
#endif
#if (SIZEOF_INT8_T != 0)
#define HAVE_INT8_T
#endif
#if (SIZEOF_INT16_T != 0)
#define HAVE_INT16_T
#endif
#if (SIZEOF_INT32_T != 0)
#define HAVE_INT32_T
#endif
#if (SIZEOF_INT64_T != 0)
#define HAVE_INT64_T
#endif
#if (SIZEOF_UINT8_T != 0)
#define HAVE_UINT8_T
#endif
#if (SIZEOF_UINT16_T != 0)
#define HAVE_UINT16_T
#endif
#if (SIZEOF_UINT32_T != 0)
#define HAVE_UINT32_T
#endif
#if (SIZEOF_UINT64_T != 0)
#define HAVE_UINT64_T
#endif
#if (SIZEOF_INTPTR_T != 0)
#define HAVE_INTPTR_T
#endif
#if (SIZEOF_UINTPTR_T != 0)
#define HAVE_UINTPTR_T
#endif
#if (SIZEOF_CHAR == 1)
#ifndef HAVE_INT8_T
typedef signed char int8_t;
#define HAVE_INT8_T
#endif
#ifndef HAVE_UINT8_T
typedef unsigned char uint8_t;
#define HAVE_UINT8_T
#endif
#endif
#if (SIZEOF_SHORT == 2)
#ifndef HAVE_INT16_T
typedef signed short int16_t;
#define HAVE_INT16_T
#endif
#ifndef HAVE_UINT16_T
typedef unsigned short uint16_t;
#define HAVE_UINT16_T
#endif
#endif
#if (SIZEOF_INT == 2)
#ifndef HAVE_INT16_T
typedef signed int int16_t;
#define HAVE_INT16_T
#endif
#ifndef HAVE_UINT16_T
typedef unsigned int uint16_t;
#define HAVE_UINT16_T
#endif
#elif (SIZEOF_INT == 4)
#ifndef HAVE_INT32_T
typedef signed int int32_t;
#define HAVE_INT32_T
#endif
#ifndef HAVE_UINT32_T
typedef unsigned int uint32_t;
#define HAVE_UINT32_T
#endif
#ifndef UINT16_MAX
#define UINT16_MAX 0xffffu
#endif
#ifndef INT16_MAX
#define INT16_MAX 0x7fff
#endif
#ifndef INT16_MIN
#define INT16_MIN (-INT16_MAX-1)
#endif
#ifndef UINT32_MAX
#define UINT32_MAX 0xffffffffu
#endif
#ifndef INT32_MAX
#define INT32_MAX 0x7fffffff
#endif
#ifndef INT32_MIN
#define INT32_MIN (-2147483647-1)
#endif
#endif
#if (SIZEOF_LONG == 4)
#ifndef HAVE_INT32_T
typedef signed long int32_t;
#define HAVE_INT32_T
#endif
#ifndef HAVE_UINT32_T
typedef unsigned long uint32_t;
#define HAVE_UINT32_T
#ifndef UINT32_MAX
#define UINT32_MAX 0xfffffffful
#endif
#endif
#elif (SIZEOF_LONG == 8)
#ifndef HAVE_INT64_T
typedef signed long int64_t;
#define HAVE_INT64_T
#endif
#ifndef HAVE_UINT32_T
typedef unsigned long uint64_t;
#define HAVE_UINT32_T
#endif
#ifndef UINT64_MAX
#define UINT64_MAX 0xfffffffffffffffful
#endif
#endif
#if (SIZEOF_LONG_LONG == 8)
#ifndef HAVE_INT64_T
typedef signed long long int64_t;
#define HAVE_INT64_T
#endif
#ifndef HAVE_UINT64_T
typedef unsigned long long uint64_t;
#define HAVE_UINT64_T
#endif
#ifndef UINT64_MAX
#define UINT64_MAX 0xffffffffffffffffull
#endif
#ifndef INT64_MAX
#define INT64_MAX 0x7fffffffffffffffll
#endif
#endif
#if (SIZEOF___INT64 == 8)
#ifndef HAVE_INT64_T
typedef signed __int64 int64_t;
#define HAVE_INT64_T
#endif
#ifndef HAVE_UINT64_T
typedef unsigned __int64 uint64_t;
#define HAVE_UINT64_T
#endif
#ifndef UINT64_MAX
#define UINT64_MAX 0xffffffffffffffffui64
#endif
#ifndef INT64_MAX
#define INT64_MAX 0x7fffffffffffffffi64
#endif
#endif
#ifndef INT64_MIN
#define INT64_MIN ((- INT64_MAX) - 1)
#endif
#ifndef SIZE_MAX
#if SIZEOF_SIZE_T == 8
#define SIZE_MAX UINT64_MAX
#elif SIZEOF_SIZE_T == 4
#define SIZE_MAX UINT32_MAX
#else
#error "Can't define SIZE_MAX"
#endif
#endif
#ifndef HAVE_SSIZE_T
#if SIZEOF_SIZE_T == 8
typedef int64_t ssize_t;
#elif SIZEOF_SIZE_T == 4
typedef int32_t ssize_t;
#else
#error "Can't define ssize_t."
#endif
#endif
#if (SIZEOF_VOID_P > 4 && SIZEOF_VOID_P <= 8)
#ifndef HAVE_INTPTR_T
typedef int64_t intptr_t;
#define SIZEOF_INTPTR_T 8
#endif
#ifndef HAVE_UINTPTR_T
typedef uint64_t uintptr_t;
#define SIZEOF_UINTPTR_T 8
#endif
#elif (SIZEOF_VOID_P > 2 && SIZEOF_VOID_P <= 4)
#ifndef HAVE_INTPTR_T
typedef int32_t intptr_t;
#define SIZEOF_INTPTR_T 4
#endif
#ifndef HAVE_UINTPTR_T
typedef uint32_t uintptr_t;
#define SIZEOF_UINTPTR_T 4
#endif
#else
#error "void * is either >8 bytes or <= 2. In either case, I am confused."
#endif
#ifndef HAVE_INT8_T
#error "Missing type int8_t"
#endif
#ifndef HAVE_UINT8_T
#error "Missing type uint8_t"
#endif
#ifndef HAVE_INT16_T
#error "Missing type int16_t"
#endif
#ifndef HAVE_UINT16_T
#error "Missing type uint16_t"
#endif
#ifndef HAVE_INT32_T
#error "Missing type int32_t"
#endif
#ifndef HAVE_UINT32_T
#error "Missing type uint32_t"
#endif
#ifndef HAVE_INT64_T
#error "Missing type int64_t"
#endif
#ifndef HAVE_UINT64_T
#error "Missing type uint64_t"
#endif
/* This assumes a sane (2's-complement) representation. But if you
* aren't 2's complement, and you don't define LONG_MAX, then you're so
* bizarre that I want nothing to do with you. */
#ifndef USING_TWOS_COMPLEMENT
#error "Seems that your platform doesn't use 2's complement arithmetic. Argh."
#endif
#ifndef LONG_MAX
#if (SIZEOF_LONG == 4)
#define LONG_MAX 0x7fffffffL
#elif (SIZEOF_LONG == 8)
#define LONG_MAX 0x7fffffffffffffffL
#else
#error "Can't define LONG_MAX"
#endif
#endif
#ifndef INT_MAX
#if (SIZEOF_INT == 4)
#define INT_MAX 0x7fffffffL
#elif (SIZEOF_INT == 8)
#define INT_MAX 0x7fffffffffffffffL
#else
#error "Can't define INT_MAX"
#endif
#endif
#ifndef UINT_MAX
#if (SIZEOF_INT == 2)
#define UINT_MAX 0xffffu
#elif (SIZEOF_INT == 4)
#define UINT_MAX 0xffffffffu
#elif (SIZEOF_INT == 8)
#define UINT_MAX 0xffffffffffffffffu
#else
#error "Can't define UINT_MAX"
#endif
#endif
#ifndef SHORT_MAX
#if (SIZEOF_SHORT == 2)
#define SHORT_MAX 0x7fff
#elif (SIZEOF_SHORT == 4)
#define SHORT_MAX 0x7fffffff
#else
#error "Can't define SHORT_MAX"
#endif
#endif
#ifndef TIME_MAX
#ifdef TIME_T_IS_SIGNED
#if (SIZEOF_TIME_T == SIZEOF_INT)
#define TIME_MAX ((time_t)INT_MAX)
#elif (SIZEOF_TIME_T == SIZEOF_LONG)
#define TIME_MAX ((time_t)LONG_MAX)
#elif (SIZEOF_TIME_T == 8)
#define TIME_MAX ((time_t)INT64_MAX)
#else
#error "Can't define (signed) TIME_MAX"
#endif
#else
/* Unsigned case */
#if (SIZEOF_TIME_T == 4)
#define TIME_MAX ((time_t)UINT32_MAX)
#elif (SIZEOF_TIME_T == 8)
#define TIME_MAX ((time_t)UINT64_MAX)
#else
#error "Can't define (unsigned) TIME_MAX"
#endif
#endif /* time_t_is_signed */
#endif /* ifndef(TIME_MAX) */
#ifndef TIME_MIN
#ifdef TIME_T_IS_SIGNED
#if (SIZEOF_TIME_T == SIZEOF_INT)
#define TIME_MIN ((time_t)INT_MIN)
#elif (SIZEOF_TIME_T == SIZEOF_LONG)
#define TIME_MIN ((time_t)LONG_MIN)
#elif (SIZEOF_TIME_T == 8)
#define TIME_MIN ((time_t)INT64_MIN)
#else
#error "Can't define (signed) TIME_MIN"
#endif
#else
/* Unsigned case */
#if (SIZEOF_TIME_T == 4)
#define TIME_MIN ((time_t)UINT32_MIN)
#elif (SIZEOF_TIME_T == 8)
#define TIME_MIN ((time_t)UINT64_MIN)
#else
#error "Can't define (unsigned) TIME_MIN"
#endif
#endif /* time_t_is_signed */
#endif /* ifndef(TIME_MIN) */
#ifndef SIZE_MAX
#if (SIZEOF_SIZE_T == 4)
#define SIZE_MAX UINT32_MAX
#elif (SIZEOF_SIZE_T == 8)
#define SIZE_MAX UINT64_MAX
#else
#error "Can't define SIZE_MAX"
#endif
#endif
#ifndef SSIZE_MAX
#if (SIZEOF_SIZE_T == 4)
#define SSIZE_MAX INT32_MAX
#elif (SIZEOF_SIZE_T == 8)
#define SSIZE_MAX INT64_MAX
#else
#error "Can't define SSIZE_MAX"
#endif
#endif
/** Any ssize_t larger than this amount is likely to be an underflow. */
#define SSIZE_T_CEILING ((ssize_t)(SSIZE_MAX-16))
/** Any size_t larger than this amount is likely to be an underflow. */
#define SIZE_T_CEILING ((size_t)(SSIZE_MAX-16))
#endif /* __TORINT_H */
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