[62] | 1 | !--------------------------------------------------------------! |
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| 2 | ! 2012/04/20 (C) Gabriel Moreau |
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| 3 | ! Licence LGPLv2 or letter |
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| 4 | !--------------------------------------------------------------! |
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| 5 | |
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| 6 | module Signal_Checkpoint |
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| 7 | |
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| 8 | #ifdef __INTEL_COMPILER |
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| 9 | use IFPORT, only: signal |
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| 10 | #endif |
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| 11 | |
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| 12 | implicit none |
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| 13 | private |
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| 14 | |
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| 15 | integer, external :: signal_checkpoint_trap_callback_intel_ |
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| 16 | external :: signal_checkpoint_trap_callback_gfortran_ |
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| 17 | |
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[64] | 18 | integer, parameter :: SIGUSR2 = 12 ! Signal USR2 |
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[62] | 19 | |
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[64] | 20 | ! False public, only for trap procedure |
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[62] | 21 | integer, public :: INTERNAL_RECEIVED_COUNT_ = 0 ! Global Counter |
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| 22 | |
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| 23 | public :: SIGUSR2 |
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| 24 | public :: signal_checkpoint_connect |
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| 25 | public :: signal_checkpoint_is_received |
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| 26 | public :: signal_checkpoint_received_times |
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| 27 | |
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| 28 | !--------------------------------------------------------------! |
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| 29 | contains |
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| 30 | !--------------------------------------------------------------! |
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| 31 | |
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| 32 | subroutine signal_checkpoint_connect (SIG_NUM) |
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[63] | 33 | integer, intent(in) :: SIG_NUM |
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[62] | 34 | |
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| 35 | #ifdef __INTEL_COMPILER |
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[63] | 36 | integer :: ERR |
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[62] | 37 | |
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[63] | 38 | ERR = signal(SIG_NUM, signal_checkpoint_trap_callback_intel_, -1) |
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[62] | 39 | #endif |
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[64] | 40 | |
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[62] | 41 | #ifdef __GNUC__ |
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[64] | 42 | intrinsic signal |
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| 43 | |
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[63] | 44 | call signal(SIG_NUM, signal_checkpoint_trap_callback_gfortran_) |
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[62] | 45 | #endif |
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| 46 | |
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| 47 | end subroutine |
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| 48 | |
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| 49 | !--------------------------------------------------------------! |
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[64] | 50 | |
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[62] | 51 | function signal_checkpoint_is_received () result (IS_RECEIVED) |
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| 52 | logical :: IS_RECEIVED |
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| 53 | |
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| 54 | IS_RECEIVED = (INTERNAL_RECEIVED_COUNT_ > 0) |
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| 55 | end function |
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| 56 | |
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| 57 | !--------------------------------------------------------------! |
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[64] | 58 | |
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[62] | 59 | function signal_checkpoint_received_times () result (RECEIVED_TIMES) |
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| 60 | integer :: RECEIVED_TIMES |
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| 61 | |
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| 62 | RECEIVED_TIMES = INTERNAL_RECEIVED_COUNT_ |
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| 63 | end function |
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| 64 | |
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| 65 | !--------------------------------------------------------------! |
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| 66 | end module |
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| 67 | !--------------------------------------------------------------! |
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| 68 | |
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| 69 | |
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| 70 | !--------------------------------------------------------------! |
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| 71 | ! Internal trap procedure and function |
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| 72 | ! Must be external to be C compatible |
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| 73 | !--------------------------------------------------------------! |
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| 74 | |
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| 75 | subroutine signal_checkpoint_trap_callback_gfortran_ (SIG_NUM) |
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[63] | 76 | use Signal_Checkpoint |
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| 77 | integer, intent(in) :: SIG_NUM |
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[62] | 78 | |
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[63] | 79 | INTERNAL_RECEIVED_COUNT_ = INTERNAL_RECEIVED_COUNT_ + 1 |
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[62] | 80 | end subroutine |
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| 81 | |
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[64] | 82 | !--------------------------------------------------------------! |
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| 83 | |
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[62] | 84 | function signal_checkpoint_trap_callback_intel_ (SIG_NUM) result (ONE) |
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[63] | 85 | use Signal_Checkpoint |
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| 86 | integer, intent(in) :: SIG_NUM |
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| 87 | integer :: ONE |
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[62] | 88 | |
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[63] | 89 | INTERNAL_RECEIVED_COUNT_ = INTERNAL_RECEIVED_COUNT_ + 1 |
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| 90 | ONE = 1 |
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[62] | 91 | end |
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[64] | 92 | |
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| 93 | !--------------------------------------------------------------! |
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| 94 | !--------------------------------------------------------------! |
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