Last change
on this file since 608 was
581,
checked in by laurent, 9 years ago
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Adding ocean application, some mathematics functions and distributed locks
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File size:
1.2 KB
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Rev | Line | |
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[581] | 1 | |
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| 2 | #ifndef USER_LOCKS_H |
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| 3 | #define USER_LOCKS_H |
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| 4 | |
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| 5 | #include "hard_config.h" |
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| 6 | |
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| 7 | ///////////////////////////////////////////////////////////////////////////// |
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| 8 | // SQT lock structures and access functions |
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| 9 | ///////////////////////////////////////////////////////////////////////////// |
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| 10 | |
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| 11 | typedef struct sqt_lock_node_s |
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| 12 | { |
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| 13 | unsigned int current; // current ticket index |
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| 14 | unsigned int free; // next free ticket index |
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| 15 | unsigned int level; // hierarchical level (0 is bottom) |
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| 16 | struct sqt_lock_node_s* parent; // parent node (NULL for root) |
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| 17 | struct sqt_lock_node_s* child[4]; // children node |
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| 18 | unsigned int padding[8]; // for 64 bytes alignment |
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| 19 | } sqt_lock_node_t; |
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| 20 | |
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| 21 | typedef struct sqt_lock_s |
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| 22 | { |
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| 23 | sqt_lock_node_t* node[X_SIZE][Y_SIZE][5]; // array of pointers on SBT nodes |
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| 24 | } sqt_lock_t; |
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| 25 | |
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| 26 | extern void sqt_lock_init( sqt_lock_t* lock, |
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| 27 | unsigned int x_size, |
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| 28 | unsigned int y_size, |
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| 29 | unsigned int ntasks ); |
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| 30 | |
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| 31 | extern void sqt_lock_acquire( sqt_lock_t* lock ); |
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| 32 | |
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| 33 | extern void sqt_lock_release( sqt_lock_t* lock ); |
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| 34 | |
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| 35 | |
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| 36 | #endif |
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