mirror of https://github.com/schoebel/mars
82 lines
1.8 KiB
C
82 lines
1.8 KiB
C
// (c) 2010 Thomas Schoebel-Theuer / 1&1 Internet AG
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#ifndef MARS_TRANS_LOGGER_H
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#define MARS_TRANS_LOGGER_H
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#define REGION_SIZE_BITS 22
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#define REGION_SIZE (1 << REGION_SIZE_BITS)
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#define TRANS_HASH_MAX 128
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#include <linux/time.h>
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#include "log_format.h"
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#include "pairing_heap.h"
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////////////////////////////////////////////////////////////////////
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_PAIRING_HEAP_TYPEDEF(mref,)
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struct logger_queue {
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struct list_head q_anchor;
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struct pairing_heap_mref *heap_high;
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struct pairing_heap_mref *heap_low;
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loff_t heap_border;
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spinlock_t q_lock;
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atomic_t q_queued;
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atomic_t q_flying;
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long long q_last_action; // jiffies
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// tunables
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int q_max_queued;
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int q_max_flying;
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int q_max_jiffies;
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bool q_ordering;
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};
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////////////////////////////////////////////////////////////////////
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struct hash_anchor {
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rwlock_t hash_lock;
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struct list_head hash_anchor;
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};
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struct trans_logger_mars_ref_aspect {
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GENERIC_ASPECT(mars_ref);
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struct trans_logger_output *output;
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struct list_head hash_head;
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struct list_head q_head;
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struct pairing_heap_mref ph;
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struct trans_logger_mars_ref_aspect *shadow_ref;
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void *orig_data;
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struct timespec stamp;
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struct generic_callback cb;
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struct trans_logger_mars_ref_aspect *orig_mref_a;
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};
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struct trans_logger_brick {
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MARS_BRICK(trans_logger);
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struct log_status logst;
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// parameters
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bool log_reads;
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int limit_congest; // limit phase1 congestion.
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};
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struct trans_logger_output {
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MARS_OUTPUT(trans_logger);
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struct hash_anchor hash_table[TRANS_HASH_MAX];
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atomic_t hash_count;
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atomic_t fly_count;
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struct task_struct *thread;
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wait_queue_head_t event;
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// queues
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struct logger_queue q_phase1;
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struct logger_queue q_phase2;
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struct logger_queue q_phase3;
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struct logger_queue q_phase4;
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};
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struct trans_logger_input {
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MARS_INPUT(trans_logger);
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};
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MARS_TYPES(trans_logger);
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#endif
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