Ruby

SFTP Fsync -- Flush an Open File on the Server

See more SFTP Examples

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.

Ruby

require 'chilkat'

success = false

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

sftp = Chilkat::CkSFtp.new()

# Pass a domain or IP address..
success = sftp.Connect("my-sftp-server.com",22)
if (success == true)
    success = sftp.AuthenticatePw("mySFtpLogin","mySFtpPassword")
end

if (success == true)
    success = sftp.InitializeSftp()
end

if (success != true)
    print sftp.lastErrorText() + "\n";
    exit
end

# Open a file on the server for writing.
handle = sftp.openFile("myTest.txt","writeOnly","createTruncate")
if (sftp.get_LastMethodSuccess() != true)
    print sftp.lastErrorText() + "\n";
    exit
end

# Write some text to the file:
success = sftp.WriteFileText(handle,"ansi","abcdefghijklmnopqrstuvwxyz")
if (success != true)
    print sftp.lastErrorText() + "\n";
    exit
end

# 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)
success = sftp.Fsync(handle)
if (success != true)
    print sftp.lastErrorText() + "\n";
    exit
end

# ....
# ....

success = sftp.WriteFileText(handle,"ansi","ABCDEFGHIJKLMNOPQRSTUVWXYZ")
if (success != true)
    print sftp.lastErrorText() + "\n";
    exit
end

# Close the file.
success = sftp.CloseHandle(handle)
if (success != true)
    print sftp.lastErrorText() + "\n";
    exit
end

print "Success." + "\n";