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@@ -43,38 +43,52 @@ bn CBigNum
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-------------------------
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Locking/mutex usage notes
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The code is multi-threaded, and uses mutexes and the CRITICAL_BLOCK/TRY_CRITICAL_BLOCK macros to protect data structures.
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The code is multi-threaded, and uses mutexes and the
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CRITICAL_BLOCK/TRY_CRITICAL_BLOCK macros to protect data structures.
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Deadlocks due to inconsistent lock ordering (thread 1 locks cs_main and then cs_wallet, while thread 2 locks them in the opposite order: result, deadlock as each waits for the other to release its lock) are a problem. Compile with -DDEBUG_LOCKORDER to get lock order inconsistencies reported in the debug.log file.
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Deadlocks due to inconsistent lock ordering (thread 1 locks cs_main
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and then cs_wallet, while thread 2 locks them in the opposite order:
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result, deadlock as each waits for the other to release its lock) are
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a problem. Compile with -DDEBUG_LOCKORDER to get lock order
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inconsistencies reported in the debug.log file.
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Re-architecting the core code so there are better-defined interfaces between the various components is a goal, with any necessary locking done by the components (e.g. see the self-contained CKeyStore class and its cs_KeyStore lock for example).
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Re-architecting the core code so there are better-defined interfaces
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between the various components is a goal, with any necessary locking
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done by the components (e.g. see the self-contained CKeyStore class
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and its cs_KeyStore lock for example).
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-------
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Threads
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StartNode : Starts other threads.
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ThreadGetMyExternalIP : Determines outside-the-firewall IP address, sends addr message to connected peers when it determines it.
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ThreadGetMyExternalIP : Determines outside-the-firewall IP address,
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sends addr message to connected peers when it determines it.
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ThreadIRCSeed : Joins IRC bootstrapping channel, watching for new peers and advertising this node's IP address.
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ThreadIRCSeed : Joins IRC bootstrapping channel, watching for new
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peers and advertising this node's IP address.
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ThreadSocketHandler : Sends/Receives data from peers on port 8333.
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ThreadMessageHandler : Higher-level message handling (sending and receiving).
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ThreadMessageHandler : Higher-level message handling (sending and
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receiving).
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ThreadOpenConnections : Initiates new connections to peers.
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ThreadTopUpKeyPool : replenishes the keystore's keypool.
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ThreadCleanWalletPassphrase : re-locks an encrypted wallet after user has unlocked it for a period of time.
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ThreadCleanWalletPassphrase : re-locks an encrypted wallet after user
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has unlocked it for a period of time.
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SendingDialogStartTransfer : used by pay-via-ip-address code (obsolete)
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ThreadDelayedRepaint : repaint the gui
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ThreadFlushWalletDB : Close the wallet.dat file if it hasn't been used in 500ms.
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ThreadFlushWalletDB : Close the wallet.dat file if it hasn't been used
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in 500ms.
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ThreadRPCServer : Remote procedure call handler, listens on port 8332 for connections and services them.
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ThreadRPCServer : Remote procedure call handler, listens on port 8332
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for connections and services them.
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ThreadBitcoinMiner : Generates bitcoins
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Gavin Andresen