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Visual FoxPro Examples

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(Visual FoxPro) SFTP Fsync -- Flush an Open File on the Server

Demonstrates how to flush the contents of an open file on the server. This example only works for servers that implement the fsync@openssh.com extension.

Note: This example requires Chilkat v9.5.0.71 or later.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

LOCAL loSftp
LOCAL lnSuccess
LOCAL lcHandle

* This example assumes the Chilkat API to have been previously unlocked.
* See Global Unlock Sample for sample code.

loSftp = CreateObject('Chilkat_9_5_0.SFtp')

* Pass a domain or IP address..
lnSuccess = loSftp.Connect("my-sftp-server.com",22)
IF (lnSuccess = 1) THEN
    lnSuccess = loSftp.AuthenticatePw("mySFtpLogin","mySFtpPassword")
ENDIF

IF (lnSuccess = 1) THEN
    lnSuccess = loSftp.InitializeSftp()
ENDIF

IF (lnSuccess <> 1) THEN
    ? loSftp.LastErrorText
    RELEASE loSftp
    CANCEL
ENDIF

* Open a file on the server for writing.
lcHandle = loSftp.OpenFile("myTest.txt","writeOnly","createTruncate")
IF (loSftp.LastMethodSuccess <> 1) THEN
    ? loSftp.LastErrorText
    RELEASE loSftp
    CANCEL
ENDIF

* Write some text to the file:
lnSuccess = loSftp.WriteFileText(lcHandle,"ansi","abcdefghijklmnopqrstuvwxyz")
IF (lnSuccess <> 1) THEN
    ? loSftp.LastErrorText
    RELEASE loSftp
    CANCEL
ENDIF

* Make sure the server flushes what we wrote to the disk..
* (this is requires a server that implements the fsync@openssh.com SFTP protocol extension)
lnSuccess = loSftp.Fsync(lcHandle)
IF (lnSuccess <> 1) THEN
    ? loSftp.LastErrorText
    RELEASE loSftp
    CANCEL
ENDIF

* ....
* ....

lnSuccess = loSftp.WriteFileText(lcHandle,"ansi","ABCDEFGHIJKLMNOPQRSTUVWXYZ")
IF (lnSuccess <> 1) THEN
    ? loSftp.LastErrorText
    RELEASE loSftp
    CANCEL
ENDIF

* Close the file.
lnSuccess = loSftp.CloseHandle(lcHandle)
IF (lnSuccess <> 1) THEN
    ? loSftp.LastErrorText
    RELEASE loSftp
    CANCEL
ENDIF

? "Success."

RELEASE loSftp


 

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