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Problem 2: Create a ticket spin lock

Problem 2: Create a ticket spin lock

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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1 #include "lock.hpp" 2 3 void init( lock_t* lock ) { return; 7 8. 9 void 10 lock( lock_t* lock ) 11 { 12 return; 13 } 14 15 void unlock( lock_t lock ) 16 17 { 18 return; 19 } 20 void destroy( lock_t* lock ) 21 22 { 23 return; 24 }
Transcribed Image Text:1 #include "lock.hpp" 2 3 void init( lock_t* lock ) { return; 7 8. 9 void 10 lock( lock_t* lock ) 11 { 12 return; 13 } 14 15 void unlock( lock_t lock ) 16 17 { 18 return; 19 } 20 void destroy( lock_t* lock ) 21 22 { 23 return; 24 }
Problem 2: Create a ticket spin lock Complete the functions in ticket_spin_lock.cpp to implement a ticket lock that spins while waiting. Some useful hints: • The lock_t* lock struct containts the variables int ticket and int turn. • Use the atomic function_sync_fetch_and_add( int* ticket, int addition ). This function will atomically fetch the value in ticket and add addition to this value. • You may not need to do anything in the destroy function.
Transcribed Image Text:Problem 2: Create a ticket spin lock Complete the functions in ticket_spin_lock.cpp to implement a ticket lock that spins while waiting. Some useful hints: • The lock_t* lock struct containts the variables int ticket and int turn. • Use the atomic function_sync_fetch_and_add( int* ticket, int addition ). This function will atomically fetch the value in ticket and add addition to this value. • You may not need to do anything in the destroy function.
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