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176.8.90.7: /* Infrastructure of OpenClovis SAFplus */

2012-02-12T01:18:39Z

‎Infrastructure of OpenClovis SAFplus

Show changes

Stone: /* Heap Memory */

2007-10-15T19:15:40Z

‎Heap Memory

Stone: /* Basic Infrastructure Core */

2007-10-15T19:11:52Z

‎Basic Infrastructure Core

Stone: /* Database Abstraction Layer (DBAL) */

2007-10-15T19:04:23Z

‎Database Abstraction Layer (DBAL)

Stone at 18:58, 15 October 2007

2007-10-15T18:58:51Z

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	Heap memory is used for dynamic memory allocation. Memory is allocated from a large pool of unused memory area called the heap. The size of the memory allocation can be determined at run-time. The OpenClovis heap memory subsystem allows the components to be configured with allocation limits so that a process with a memory leak will not consume resources needed by other processes. Additionally allocation alarms can be configured so that the operator can be notified of imminent memory exhaustion and appropriate action be taken.		Heap memory is used for dynamic memory allocation. Memory is allocated from a large pool of unused memory area called the heap. The size of the memory allocation can be determined at run-time. The OpenClovis heap memory subsystem allows the components to be configured with allocation limits so that a process with a memory leak will not consume resources needed by other processes. Additionally allocation alarms can be configured so that the operator can be notified of imminent memory exhaustion and appropriate action be taken.
		+
		+	For information about configuring these limits and alarms see [[Doc:sdkguide/compconfig \| OpenClovis SAFplus Platform Component Configuration]].

	=====Timer Library=====		=====Timer Library=====

@@ Line 119: / Line 119: @@
 ====Basic Infrastructure Core====
-The Basic Infrastructure Core (BIC) comprises libraries and functions required for the system. It provides essential basic services to all the OpenClovis software, utilities, and other customized applications.BIC includes the following software libraries (APIs):
+The Basic Infrastructure Core (BIC) comprises libraries and functions required for the system. It provides essential basic services to all the OpenClovis software, utilities, and other customized applications.  Customer applications are also welcome to use the BIC APIs to take advantage of this infrastructure.  BIC includes the following software libraries (APIs):
 * [[#Buffer Manager Library | Buffer Manager Library]]
 * [[#Heap Memory | Heap Memory]]
@@ Line 134: / Line 134: @@
 =====Heap Memory=====
-Heap memory is used for dynamic memory allocation. Memory is allocated from a large pool of unused memory area called the heap. The size of the memory allocation can be determined at run-time.
+Heap memory is used for dynamic memory allocation. Memory is allocated from a large pool of unused memory area called the heap. The size of the memory allocation can be determined at run-time.  The OpenClovis heap memory subsystem allows the components to be configured with allocation limits so that a process with a memory leak will not consume resources needed by other processes.  Additionally allocation alarms can be configured so that the operator can be notified of imminent memory exhaustion and appropriate action be taken.
 =====Timer Library=====

@@ Line 67: / Line 67: @@
 ====Database Abstraction Layer (DBAL)====
-The OpenClovis Database Abstraction Layer (DBAL) provides a standard interface for any OpenClovis SAFplus Platform infrastructure component or application to interface with the commonly used relational database.
+The OpenClovis Database Abstraction Layer (DBAL) provides a standard interface for any OpenClovis SAFplus Platform infrastructure component or application to interface with databases.
 '''Features'''
-* DBAL currently supports only the GNU Database Manager (GDBM).
+* DBAL currently supports:
 '''How it Works'''
-The primary user of this interface is the COR component which can dump or read its object repository to and from a database for either persistent storage or offline processing. DBAL is also a standalone library with no dependencies on any other OpenClovis SAFplus Platform components.
+The primary user of this interface is the COR component which can write or read its object repository to and from a database for either persistent storage or offline processing. DBAL is also a standalone library with no dependencies on any other OpenClovis SAFplus Platform components.
 ====Execution Object (EO)====

@@ Line 36: / Line 36: @@
 ====Operating System Abstraction Layer (OSAL)====
-The OpenClovis Operating System Abstraction Layer (OSAL) provides a standard interface to commonly used operating system functions. OSAL supports target operating systems like most variations of Carrier Grade Linux.
+The OpenClovis Operating System Abstraction Layer (OSAL) provides a standard interface to commonly used operating system functions. The OSAL layer supports target operating systems like most varieties of Linux.
 '''Features'''
@@ Line 44: / Line 44: @@
 '''How it works'''
-All OpenClovis SAFplus Platform components are developed based on OSAL that provide an OS agnostic function to all system calls, such as memory management and thread management functions. Internally, OSAL maps such functions to the respective equivalent system calls provided by the underlying OS. This allows OpenClovis SAFplus Platform as well as all OpenClovis SAFplus-based applications to be ported to new operating systems with no modifications.
+All OpenClovis SAFplus Platform components are developed based on OSAL that provides an OS agnostic function to all system calls, such as process and thread management functions. Internally, OSAL maps such functions to the respective equivalent system calls provided by the underlying OS. This allows OpenClovis SAFplus Platform as well as all OpenClovis SAFplus-based applications to be ported to new operating systems with no modifications.
 OpenClovis SAFplus Platform is delivered with a Posix-compliant adaptation module that allows it to operate to any Posix-compliant system, such as Linux and most UNIX systems.
-Software components use the signal handlers provided by OSAL to handle critical UNIX signals. This can automatically inform OpenClovis Component Manager (CPM) about the signal and generate a fault, or trigger necessary recovery actions. OSAL is currently designed as a standalone library with no dependencies on any other OpenClovis SAFplus Platform components.
+Software components use the signal handlers provided by OSAL to handle critical UNIX signals. This can automatically inform OpenClovis Component Manager (CPM) about the signal and generate a fault, or trigger necessary recovery actions. OSAL is currently designed as a standalone library with trivial dependencies on the Util and Debug OpenClovis SAFplus Platform components for debugging and logging.
 ====Hardware Platform Interface (HPI)====