Class: QC::Queue
- Inherits:
-
Object
- Object
- QC::Queue
- Defined in:
- lib/queue_classic/queue.rb
Instance Attribute Summary collapse
-
#name ⇒ Object
readonly
Returns the value of attribute name.
-
#top_bound ⇒ Object
readonly
Returns the value of attribute top_bound.
Instance Method Summary collapse
- #count ⇒ Object
- #delete(id) ⇒ Object
- #delete_all ⇒ Object
- #enqueue(method, *args) ⇒ Object
-
#initialize(name, top_bound = nil) ⇒ Queue
constructor
A new instance of Queue.
- #lock ⇒ Object
Constructor Details
Instance Attribute Details
#name ⇒ Object (readonly)
Returns the value of attribute name.
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# File 'lib/queue_classic/queue.rb', line 8 def name @name end |
#top_bound ⇒ Object (readonly)
Returns the value of attribute top_bound.
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# File 'lib/queue_classic/queue.rb', line 8 def top_bound @top_bound end |
Instance Method Details
#count ⇒ Object
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# File 'lib/queue_classic/queue.rb', line 45 def count QC.log_yield(:measure => 'queue.count') do s = "SELECT COUNT(*) FROM #{TABLE_NAME} WHERE q_name = $1" r = Conn.execute(s, name) r["count"].to_i end end |
#delete(id) ⇒ Object
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# File 'lib/queue_classic/queue.rb', line 32 def delete(id) QC.log_yield(:measure => 'queue.delete') do Conn.execute("DELETE FROM #{TABLE_NAME} where id = $1", id) end end |
#delete_all ⇒ Object
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# File 'lib/queue_classic/queue.rb', line 38 def delete_all QC.log_yield(:measure => 'queue.delete_all') do s = "DELETE FROM #{TABLE_NAME} WHERE q_name = $1" Conn.execute(s, name) end end |
#enqueue(method, *args) ⇒ Object
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# File 'lib/queue_classic/queue.rb', line 14 def enqueue(method, *args) QC.log_yield(:measure => 'queue.enqueue') do s="INSERT INTO #{TABLE_NAME} (q_name, method, args) VALUES ($1, $2, $3)" res = Conn.execute(s, name, method, JSON.dump(args)) end end |
#lock ⇒ Object
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# File 'lib/queue_classic/queue.rb', line 21 def lock QC.log_yield(:measure => 'queue.lock') do s = "SELECT * FROM lock_head($1, $2)" if r = Conn.execute(s, name, top_bound) {:id => r["id"], :method => r["method"], :args => JSON.parse(r["args"])} end end end |