Homework Help is Here – Start Your Trial Now!
Engineering
Computer Science
Consider the following multi-threaded C code. 1: void send money (acct * src, acct * dst, int amount) { 2: lock (& src -> mutex); 3: if (src -> value >= amount) { 4: src -> value -= amount; 5: lock (& dst -> mutex); 6: dst -> value += amount ; 7: unlock (& dst -> mutex); 8:} 9: unlock (& src -> mutex); 10: } 13 (a) Describe any bug(s) you see along with the line number. You need to justify your answer (b) Now revise the code to fix the bug. (if need to write the entire code with the change)

Consider the following multi-threaded C code. 1: void send money (acct * src, acct * dst, int amount) { 2: lock (& src -> mutex); 3: if (src -> value >= amount) { 4: src -> value -= amount; 5: lock (& dst -> mutex); 6: dst -> value += amount ; 7: unlock (& dst -> mutex); 8:} 9: unlock (& src -> mutex); 10: } 13 (a) Describe any bug(s) you see along with the line number. You need to justify your answer (b) Now revise the code to fix the bug. (if need to write the entire code with the change)

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
See similar textbooks
icon
Related questions
Question

Can you please help me with question 2

Consider the following multi-threaded C code. 1: void send money (acct * src, acct * dst, int amount) { 2: lock (& src -> mutex); 3: if (src -> value >= amount) { 4: src -> value -= amount; 5: lock (& dst -> mutex); 6: dst -> value += amount ; 7: unlock (& dst -> mutex); 8:} 9: unlock (& src -> mutex); 10: } 13 (a) Describe any bug(s) you see along with the line number. You need to justify your answer (b) Now revise the code to fix the bug. (if need to write the entire code with the change)
Transcribed Image Text:Consider the following multi-threaded C code. 1: void send money (acct * src, acct * dst, int amount) { 2: lock (& src -> mutex); 3: if (src -> value >= amount) { 4: src -> value -= amount; 5: lock (& dst -> mutex); 6: dst -> value += amount ; 7: unlock (& dst -> mutex); 8:} 9: unlock (& src -> mutex); 10: } 13 (a) Describe any bug(s) you see along with the line number. You need to justify your answer (b) Now revise the code to fix the bug. (if need to write the entire code with the change)
Expert Solution
steps

Step by step

Solved in 1 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Database System Concepts
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
SEE MORE TEXTBOOKS